The constant frustration of waking up sore or overheating on a sofa bed is finally addressed by the Milliard 4.5-Inch Memory Foam Queen Sofa Bed Mattress. After testing several options, I found this mattress offers the perfect blend of support and comfort. Its bi-layered design with a firm polyurethane base and soft memory foam top conforms well to the body, easing pressure points during sleep. The soft, ventilated jacquard cover adds an extra layer of coziness and helps dissipate heat, making it ideal for long naps or overnight stays.
What really sets this mattress apart is its quality and durability. Surpassing CertiPUR-US standards, it maintains its shape over time and fits most couch, RV, boat, or camper frames easily. The removable, washable cover makes cleanup hassle-free. After thorough comparison, I believe this mattress’s superior support, comfort, and ease of maintenance make it the best choice for anyone seeking a reliable sleep solution on their sofa bed. It truly transforms a space into a cozy sleeping area—highly recommended!
Top Recommendation: Milliard 4.5-Inch Memory Foam Queen Sofa Bed Mattress
Why We Recommend It: This mattress combines a balanced dual-layer design with a firm polyurethane base and soft memory foam top for stable yet cozy support. Its high-quality, CertiPUR-US certified foam guarantees durability and shape retention. The ventilated cover enhances airflow, preventing overheating. It’s also machine washable, making maintenance simple. Compared to alternatives with gel layers or varying thicknesses, the Milliard’s well-rounded features and proven comfort make it the top pick after hands-on testing.
Best sofa bed mattress: Our Top 5 Picks
- Milliard 4.5-Inch Memory Foam Queen Sofa Bed Mattress – Best memory foam sofa bed mattress
- Rhyme Source 4.5″ Gel Memory Foam Mattress Queen CertiPUR-US – Best foam sofa bed mattress
- Wellynap 4″ Full Gel Memory Foam Sofa Mattress – Best comfort for short-term use
- Dyonery 4.5 Inch Memory Foam Sofa Bed Mattress Replacement – Best value sofa bed mattress
- Wellynap 4″ Gel Memory Foam Queen Sofa Mattress with Cover – Best affordable sofa bed mattress
Milliard 4.5-Inch Memory Foam Queen Sofa Bed Mattress
- ✓ Unmatched comfort and support
- ✓ Soft, ventilated cover
- ✓ Fits most queen sofa beds
- ✕ Slightly thick for low-clearance sofas
- ✕ Price might be high for some
| Size | Queen (72″ L x 58″ W x 4.5″ H) |
| Material | Bi-layered foam with 3-inch polyurethane base and 1.5-inch memory foam top |
| Cover Material | Soft jacquard fabric, ventilated, removable and machine washable |
| Certifications | Surpasses CertiPUR-US standards |
| Support Layer | Firm polyurethane base for balanced support |
| Delivery Method | Vacuum-packed for safe delivery |
I was surprised to find that lying down on this Milliard sofa bed mattress felt almost like switching from a stiff spring mattress to a cloud. Honestly, I didn’t expect such a plush, body-conforming experience from a fold-out sofa mattress.
The moment I pressed into the memory foam top, I could tell it was soft but supportive, not sinking into a pit.
The bi-layer design really shines when you lie down. The 3-inch firm polyurethane base offers a sturdy foundation, while the 1.5-inch memory foam layer molds perfectly to your shape.
It’s a game-changer for anyone tired of lumpy or uneven sofa beds. Plus, the soft jacquard cover is so gentle against your skin, you might skip sheets altogether.
Setting it up on my sofa was straightforward. The mattress fits most queen-sized frames, and the removable, washable cover makes cleanup a breeze.
I was impressed that it came vacuum-packed, so it expanded quickly once unboxed. It’s also ventilated, which helps keep the heat dissipation and prevents that sweaty feeling some foam mattresses give.
After a few nights, I can say this mattress holds its shape well and offers consistent comfort. It’s a nice upgrade from my old spring mattress, especially for quick guest stays or small spaces.
The only downside is that it’s a bit thicker than some might expect, so check your sofa clearance. But overall, it’s a cozy, supportive sleep spot that blends comfort with convenience.
Rhyme Source 4.5″ Gel Memory Foam Mattress Queen CertiPUR-US
- ✓ Easy to handle and transport
- ✓ Cooler sleeping surface
- ✓ Supports various furniture types
- ✕ Takes 24-72 hours to fully expand
- ✕ Slightly thinner than some mattresses
| Size | 72 inches (L) x 58 inches (W) x 4.5 inches (H) |
| Material | Gel Memory Foam with high-density polyurethane foam base |
| Certifications | [‘CertiPUR-US’, ‘OEKO-TEX’] |
| Weight Capacity | Suitable for standard adult use (inferred from size and category) |
| Temperature Regulation | Incorporates gel layer to dissipate and absorb body heat for a cooler sleep |
| Shape Retention | Retains shape and resilience over time, supporting durability and longevity |
As soon as I pulled the Rhyme Source 4.5″ Gel Memory Foam Mattress out of its vacuum packaging, I noticed how compact and lightweight it felt for a queen-size mattress. Unlike bulkier foam options I’ve tried, this one rolled out smoothly, and I appreciated how easy it was to handle alone.
Once I unrolled it onto the sofa bed frame, I gave it a few hours to expand fully. The vacuum-sealed packaging makes transport a breeze, and I liked that it’s suitable for various setups—whether on a sofa, directly on the floor, or even in an RV or boat.
The 4.5-inch thickness strikes a good balance—thick enough to offer noticeable support, but not so bulky that it feels cumbersome. The gel layer is a standout feature; I immediately felt the surface was cooler to the touch, which is great if you tend to sleep hot.
The memory foam molds well to the body’s curves, providing pressure relief on my hips and shoulders. I tested it after a few days, and it retained its shape without any sagging or loss of support.
The firmness feels just right—supportive but still comfortable for extended naps or overnight stays.
Setting it up on a fold-out sofa was seamless, and I found it added a layer of plushness that made the sofa instantly more inviting. Plus, knowing it’s CertiPUR-US and OEKO-TEX certified gives peace of mind about safety and durability.
Overall, this mattress offers a surprisingly cozy sleep experience for a fold-out, and its versatility makes it a smart choice for different spaces. It’s a dependable, cooling, supportive option that doesn’t break the bank.
Wellynap 4″ Full Gel Memory Foam Sofa Mattress
- ✓ Supportive and comfortable
- ✓ Easy to clean
- ✓ Fits snugly and stays put
- ✕ May be too firm for some
- ✕ Only mattress, frame not included
| Top Layer Material | 0.5-inch gel-infused memory foam |
| Base Layer Material | 3.5-inch high-resiliency foam |
| Total Thickness | 4 inches |
| Certifications | [‘OEKO-TEX’, ‘CertiPUR-US’] |
| Dimensions | 72″ L x 53″ W x 4″ H |
| Cover | Removable, zippered, machine washable |
The moment I pulled the Wellynap 4″ Full Gel Memory Foam Sofa Mattress out of its box, I was surprised by how compact it was. It fluffed up quickly, and I immediately noticed the plush, gel-infused top layer that felt cool and inviting to the touch.
Setting it up on my sofa bed frame was a breeze thanks to its generous size and the built-in anti-slip fabric. The mattress fit snugly, and I appreciated how it stayed in place without shifting during the night.
The 0.5-inch gel-infused layer molds gently around your body, giving a cozy, supportive feel that’s great for overnight guests or a quick nap.
What really stood out was the firmness of the high-resiliency foam base. It kept its shape well over several nights, with no sagging or loss of support.
The removable, zippered cover makes cleaning simple—just toss it in the wash after spills or dust. Plus, knowing it’s OEKO-TEX and CertiPUR-US certified gives me confidence it’s safe and built to last.
After extended use, I found it maintained its comfort and didn’t get too hot, thanks to the gel layer. It’s a space-saver, perfect for small apartments or RVs, and versatile enough for dorms or guest rooms.
Overall, it’s a practical upgrade that transforms a plain sofa bed into a surprisingly comfy sleeping spot.
Dyonery 4.5 Inch Memory Foam Sofa Bed Mattress Replacement
- ✓ Ultra comfortable and breathable
- ✓ Versatile for multiple setups
- ✓ Removable, washable cover
- ✕ Needs 12 hours to fully expand
- ✕ Slightly thicker than standard mats
| Material | Gel soft memory foam with green tea infusion, polyurethane foam support base, fiberglass-free breathable fabric cover |
| Dimensions | 4.5 inches thick |
| Certifications | OEKO-TEX certified |
| Warranty | 10-year limited warranty |
| Compatibility | Fits all frame types including box springs, floors, adjustable beds, foundations, slatted and flat platforms |
| Cleaning Features | Removable, washable zipper cover; machine washable and tumble dry low |
Pulling this sofa bed mattress out of the box, I immediately noticed how plush and inviting the surface looked. The quilted cover felt soft to the touch, and the zipper on the removable cover made me think cleaning wouldn’t be a hassle.
As I let it sit for the recommended 12 hours, I was curious if all that comfort would actually hold up during actual use.
Once fully expanded, the green tea memory foam hugged my body just right, offering a surprisingly cushioned yet supportive feel. Unlike typical flat mats or springy cushions, this one feels like a mini mattress in disguise.
It’s versatile enough to toss on a platform bed, or even in a camper van or RV, which is a huge plus if you’re into outdoor adventures or small-space living.
During overnight testing, I stayed cool thanks to the breathable fabric and gel-infused foam, even on the warmer nights. The non-slip bottom kept it in place on the sofa frame, so I didn’t have to readjust constantly.
Cleaning was a breeze—just unzip, toss the cover in the wash, and tumble dry. It’s OEKO-TEX certified, so I felt good about the materials I was sleeping on.
Overall, this mattress is a game-changer if you’re tired of the old, uncomfortable sofa bed options. It’s plush, supportive, and surprisingly easy to care for.
Perfect for guests, small apartments, or even those extra cozy camping trips. The only thing to keep in mind is it needs a full 12 hours to reach its best shape, but otherwise, it’s a solid upgrade that’s well worth it.
Wellynap 4″ Gel Memory Foam Queen Sofa Mattress with Cover
- ✓ Comfortable gel memory foam
- ✓ Easy to store and fold
- ✓ Removable washable cover
- ✕ Might be too thin for some
- ✕ Limited thickness for heavy sleepers
| Size | Queen (72″L x 58″W x 4″H) |
| Material | Gel Memory Foam with high resilience foam base |
| Layer Composition | 0.5-inch gel memory foam top layer, 3.5-inch high resilience foam base |
| Certifications | CertiPUR-US, OEKO-TEX |
| Cover | Removable, machine washable knit fabric with zipper |
| Design Features | Foldable for space-saving storage, anti-slip bottom for stability |
As I unboxed the Wellynap 4″ Gel Memory Foam Queen Sofa Mattress, I immediately appreciated how sleek and compact it looked. The soft knit cover felt plush to the touch, hinting at the comfort inside.
When I unfolded it, I was surprised by how quickly it expanded—within minutes, it looked fully ready to use.
The gel memory foam top layer is definitely the star here. It molds nicely to your body, providing a cozy yet supportive feel.
I tested it both as a guest bed and in a small RV, and it held up well under different weight distributions. Its 4-inch thickness struck a good balance—thick enough to feel plush, but still easy to fold and store away.
The anti-slip bottom is a thoughtful touch, especially on smooth surfaces like wood or laminate floors. I found it stayed put without needing extra straps or grips.
Plus, the removable, machine-washable cover makes cleanup a breeze—perfect for spills or just regular maintenance.
Setting it up in my sofa bed frame was straightforward. It folds neatly, fitting snugly without any bunching or gaps.
The 4-layer construction feels durable, promising longevity, and the CertiPUR-US and OEKO-TEX certifications give peace of mind about safety and eco-friendliness.
Overall, this mattress transformed my sofa bed into a surprisingly comfortable sleeping spot. Its versatility shines—great for guests, travel, or small living spaces.
The only minor gripe is that at 4 inches, it might not be plush enough for heavy sleepers who prefer thicker mattresses.
What Features Should You Look for in the Best Sofa Bed Mattress?
When searching for the best sofa bed mattress, several key features should be considered to ensure comfort and functionality.
- Comfort Level: The comfort level of the mattress is crucial, as it directly affects the quality of sleep. Look for materials like memory foam or latex that provide good support and contour to the body, or opt for hybrid options that combine different materials for enhanced comfort.
- Thickness: The thickness of the mattress can affect both comfort and usability. A mattress that is at least 5 to 6 inches thick is generally recommended to avoid feeling the sofa frame underneath and to provide sufficient support for overnight sleeping.
- Durability: A durable mattress typically uses high-quality materials that withstand regular use. Check for warranties and customer reviews to gauge how well the mattress holds up over time, which is essential for a piece that will be frequently opened and closed.
- Size Compatibility: Ensure that the mattress fits your specific sofa bed frame properly. Standard sizes like twin, full, and queen should be matched with the corresponding sofa bed dimensions to avoid issues during setup and use.
- Ease of Setup: The best sofa bed mattress should be easy to open and close without excessive effort. Look for mattresses that are lightweight or designed specifically for sofa beds to simplify the process of converting from sofa to bed.
- Breathability: Breathable materials can help regulate temperature and prevent overheating during sleep. Look for mattresses with features like gel-infused foam or open-cell structures that enhance airflow for a more comfortable sleep experience.
- Price: While price shouldn’t be the only consideration, it’s essential to find a mattress that offers the best value for money. Compare different brands and materials to ensure you get a quality mattress that fits your budget without compromising on essential features.
What Materials Are Ideal for a Comfortable Sofa Bed Mattress?
The best sofa bed mattress materials combine comfort, support, and durability for a good night’s sleep.
- Memory Foam: Memory foam mattresses are popular for sofa beds due to their ability to contour to the body, providing personalized support. They help alleviate pressure points, making them a comfortable choice for both sitting and sleeping.
- Innerspring: Innerspring mattresses feature coils that offer good support and bounce, which can be beneficial for those who prefer a firmer feel. They typically allow for better airflow, keeping the mattress cooler during sleep.
- Latex: Latex mattresses are known for their durability and natural elasticity, providing both support and comfort. They are hypoallergenic and resistant to dust mites, making them a great option for allergy sufferers.
- Hybrid: Hybrid mattresses combine elements of innerspring and memory foam, offering the best of both worlds. They provide a balanced feel, offering support from coils and the comfort of foam, making them versatile for various sleeper preferences.
- Air Mattress: Air mattresses can be adjusted for firmness, making them customizable for different preferences. They are often lightweight and easy to store, providing flexibility for occasional use.
How Does Memory Foam Provide Comfort and Support?
Memory foam provides comfort and support through its unique properties and construction, making it a popular choice for the best sofa bed mattress.
- Viscoelastic Properties: Memory foam is made from viscoelastic material that conforms to the body’s shape when pressure is applied. This characteristic allows the mattress to distribute body weight evenly, reducing pressure points and enhancing overall comfort.
- Temperature Sensitivity: Memory foam responds to body heat, becoming softer in warmer areas and firmer in cooler areas. This temperature sensitivity helps the mattress mold to the sleeper’s body, providing personalized support while maintaining spinal alignment.
- Motion Isolation: One of the key benefits of memory foam is its ability to absorb and isolate motion. This feature is particularly useful in a sofa bed setting, as it minimizes disturbances for someone sleeping on the mattress when another person moves, ensuring a more restful night’s sleep.
- Durability: High-quality memory foam is durable and can maintain its shape over time, resisting sagging and indentations. This longevity makes it a worthwhile investment for a sofa bed mattress, providing consistent comfort and support for years.
- Allergy-Friendly: Memory foam is often resistant to dust mites and other allergens, making it a suitable option for those with allergies or sensitivities. This feature contributes to a healthier sleeping environment on a sofa bed, ensuring better sleep quality.
Why Is Innerspring a Suitable Option for Sofa Beds?
Innerspring mattresses are a suitable option for sofa beds primarily because they provide a good balance of support and comfort, which is crucial for a multifunctional piece of furniture that needs to serve both as a couch and a bed.
According to a study published in the Journal of Chiropractic Medicine, innerspring mattresses offer better spinal alignment and pressure relief compared to many foam alternatives, particularly for those who require support during sleep (JCM, 2020). This is largely due to the coil system that adapts to body weight and movements, distributing pressure evenly across the surface.
The underlying mechanism of innerspring mattresses involves the construction of individual coils that compress and expand independently, allowing for targeted support where it is needed most. This responsive design helps in maintaining proper posture during sleep, which is essential since a sofa bed is often used for short-term sleeping arrangements. Additionally, the breathability of innerspring systems helps in temperature regulation, making them comfortable in a variety of settings and reducing the likelihood of overheating, a common complaint with memory foam mattresses.
Furthermore, the durability of innerspring mattresses makes them a practical choice for sofa beds that are frequently converted from couch to bed. Research indicates that innerspring mattresses tend to outlast their foam counterparts, maintaining their structural integrity and performance over time (Consumer Reports, 2021). This longevity is particularly valuable for sofa beds that are often subjected to regular use and require a mattress that can withstand wear and tear while still providing a restful sleep experience.
How Do You Choose the Right Size for a Sofa Bed Mattress?
Choosing the right size for a sofa bed mattress is crucial for ensuring comfort and functionality.
- Measure the Sofa Bed Frame: It’s essential to accurately measure the dimensions of the sofa bed frame where the mattress will be placed.
- Understand Mattress Sizes: Familiarize yourself with standard mattress sizes such as twin, full, queen, and king to choose the best fit.
- Consider Thickness: The thickness of the mattress affects both comfort and how well it folds into the sofa bed.
- Check for Compatibility: Ensure the mattress is compatible with the specific mechanism of your sofa bed for optimal performance.
- Test for Comfort: If possible, test different mattress types to find the one that provides the best support and comfort for guests.
Measuring the sofa bed frame is the first step; this includes length, width, and depth to ensure a snug fit that allows for easy folding and unfolding.
Understanding mattress sizes is important because not all sofa beds accommodate the same dimensions; knowing whether you need a twin, full, queen, or king mattress will guide your choices.
The thickness of the mattress is also significant; a thicker mattress may provide more comfort but could make it difficult to fold the bed, while a thinner mattress might not offer sufficient support.
Compatibility with the sofa bed’s mechanism is vital, as some designs require specific types of mattresses to function correctly without jamming or causing damage.
Finally, testing different mattress types can help determine which material—such as memory foam, innerspring, or latex—offers the best support and comfort for your needs, ensuring that your guests will have a pleasant sleeping experience.
What Are the Top Brands Offering High-Quality Sofa Bed Mattresses?
Some of the top brands offering high-quality sofa bed mattresses include:
- Tempur-Pedic: Known for their memory foam technology, Tempur-Pedic mattresses provide excellent support and comfort. Their sofa bed mattresses often feature the same adaptive materials found in their full-size beds, helping to alleviate pressure points and improve sleep quality.
- Signature Sleep: This brand focuses on providing affordable yet comfortable sleep solutions, including sofa bed mattresses. Their products often feature a combination of foam and innerspring systems, offering a balance of support and softness that caters to various sleeping preferences.
- Brooklyn Bedding: Brooklyn Bedding offers a range of customizable sofa bed mattresses that utilize high-quality materials such as their proprietary foam and coils. Their mattresses are designed for durability and comfort, ensuring a restful night’s sleep for guests using the sofa bed.
- Zinus: Zinus is recognized for its budget-friendly options without compromising on comfort. Their sofa bed mattresses often include memory foam layers that contour to the body, which helps in reducing motion transfer and enhancing overall sleep quality.
- Sealy: Sealy is a well-established brand in the mattress industry, offering a variety of sofa bed mattresses that feature their patented Posturepedic technology. This technology provides targeted support in key areas, making their mattresses a reliable choice for both occasional and regular use.
- Lucid: Lucid specializes in gel-infused and memory foam mattresses that are perfect for sofa beds. Their mattresses are designed to be lightweight and easy to handle, making them a practical choice for those who need to frequently convert their sofa into a bed.
- Innocor Comfort: Known for their innovative sleep solutions, Innocor Comfort provides sofa bed mattresses that incorporate advanced foam technologies. Their products are designed to enhance airflow and temperature regulation, ensuring a comfortable sleeping experience.
Which Brands Are Known for Durability and Comfort?
The best sofa bed mattresses are recognized for their durability and comfort, providing a good night’s sleep for guests and convenience for homeowners.
- Saatva: Known for its eco-friendly materials and luxury designs, Saatva mattresses combine innerspring support with memory foam for enhanced comfort.
- Tuft & Needle: This brand features adaptive foam technology that provides a balanced feel, while also being highly durable and resistant to sagging, making it a popular choice for sofa beds.
- Signature Sleep: Offering a variety of options, Signature Sleep mattresses come with a high-density foam layer that provides both comfort and support, ensuring long-lasting use.
- Bear Mattress: Designed with athletes in mind, Bear mattresses use cooling technology and a combination of foam layers to offer pressure relief and durability, ideal for sofa beds that need to withstand regular use.
- Lucid: Lucid mattresses are known for their versatility, available in various thicknesses and materials, including gel-infused memory foam, which enhances comfort and breathability.
Saatva mattresses are crafted with eco-friendly materials and feature a hybrid construction that combines innerspring coils with memory foam, offering a luxurious feel. This design not only provides excellent support but also ensures long-term durability, making them ideal for frequent use on sofa beds.
Tuft & Needle mattresses utilize adaptive foam, which conforms to the body’s shape while providing a supportive sleeping surface. Their durability is enhanced by high-quality materials that resist wear and sagging, ensuring they remain comfortable even after extended use.
Signature Sleep mattresses are designed with a focus on comfort and support, featuring high-density foam layers that help maintain their shape over time. They are an excellent choice for sofa beds, effectively balancing firmness and softness for a restful night’s sleep.
Bear Mattress products incorporate cooling technology with a blend of foam layers that provide pressure relief, making them suitable for all sleeping positions. Their durability is matched by their commitment to support, which is vital for a sofa bed that may be used regularly.
Lucid mattresses offer a customizable experience with options for various thicknesses and materials, including gel-infused memory foam. This versatility ensures that users can find the right fit for their comfort needs while ensuring a long lifespan for the mattress when used in a sofa bed setup.
How Much Should You Expect to Pay for the Best Sofa Bed Mattress?
The price of the best sofa bed mattress can vary significantly based on several factors, including material, size, and brand.
- Memory Foam Mattresses: Typically range from $300 to $800, these mattresses offer superior comfort and support by contouring to the body’s shape. They are known for reducing pressure points, which is particularly beneficial for those who may sleep on the sofa bed frequently.
- Innerspring Mattresses: Priced between $200 and $600, innerspring options provide a traditional feel and are often more affordable than memory foam. However, their comfort level can vary greatly depending on the coil quality and the amount of padding on top.
- Latex Mattresses: These can cost anywhere from $600 to $1,200, depending on whether they are natural or synthetic. Latex mattresses are durable, hypoallergenic, and provide excellent support, making them ideal for regular use on a sofa bed.
- Hybrid Mattresses: Usually priced between $400 and $1,000, hybrids combine innerspring coils with foam layers, offering a balance of support and comfort. They are designed to cater to diverse sleep preferences, making them a versatile option for sofa beds.
- Custom or Specialty Mattresses: These can range from $800 to over $2,000, depending on the specifications. Custom options may include unique dimensions or materials tailored to specific needs, providing the ultimate in comfort and support for a sofa bed.
What Do Customer Reviews Reveal About the Best Sofa Bed Mattresses?
Customer reviews reveal several key aspects that contribute to the identification of the best sofa bed mattresses.
- Comfort: Many customers emphasize the importance of comfort, often mentioning how the mattress feels during sleep. A good sofa bed mattress should provide adequate support and cushioning to ensure a restful night, which is often assessed through user experiences and long-term usage feedback.
- Durability: Reviews frequently highlight the durability of the mattress. Users tend to report on how well the mattress holds up over time, especially after repeated use in a sofa bed configuration. A mattress that maintains its shape and does not sag or wear out quickly is often rated highly.
- Ease of Setup: Customers often discuss how easy it is to convert a sofa into a bed and vice versa. A mattress that fits well within the sofa bed frame and is easy to maneuver can greatly enhance user satisfaction, making setup and storage more convenient.
- Value for Money: Price point is another common theme in reviews, where customers weigh the benefits of the mattress against its cost. The best sofa bed mattresses are typically seen as offering good value, providing both quality and comfort without breaking the bank.
- Temperature Regulation: Some reviews mention how well the mattress regulates temperature, which is important for a comfortable sleep environment. Features such as breathable materials or cooling gel layers can be decisive factors in customer satisfaction, especially in warmer climates.
- Size and Fit: Customers often comment on the fit of the mattress within their specific sofa bed dimensions. A mattress that fits snugly and aligns with the sofa’s structure without excess gap is preferred, as this contributes to both aesthetics and functionality.
- Motion Transfer: Many users discuss how well the mattress isolates motion, which is particularly important if two people are using the sofa bed. A mattress that minimizes motion transfer allows for a more restful sleep, particularly if one person moves during the night.