Shopping for a comfortable bed on a tight budget doesn’t have to mean settling for thin cushioning or poor support. The best memory foam mattresses under 300 can still deliver pressure relief, motion isolation, and a sleep surface that feels much more expensive than it is.
In this roundup, we focused on value, comfort, firmness consistency, and practical features like cooling foams and removable covers to help you narrow down the best low-cost option for your sleep style.
Best 10 Memory Foam Mattresses Under 300 Picks for 2026
Cooling Support
Novilla Queen 10" Memory Foam Mattress
- Gel-infused foam targets pressure relief.
- Motion-absorbing layers help couples.
- Breathable cover and cooling foam aim to reduce heat.
Best For: Shoppers wanting a cooling queen mattress with easy box delivery.
Soft Everyday Pick
Amazon Basics Plush 8" Full Mattress
- Plush memory foam conforms to the body.
- Breathable middle layer helps airflow.
- Certifications include CertiPUR-US and OEKO-TEX.
Best For: Full-size sleepers who want a soft, breathable mattress with certified materials.
Washable Cover Pick
KOW 12" Queen Memory Foam Mattress
- Three-layer foam build with gel memory foam.
- Removable washable cover helps with cleanup.
- Medium-firm support is rated for up to 800 pounds.
Best For: Buyers wanting a medium-firm queen mattress with a washable cover and strong support.
Budget Full Option
NapQueen 8" Bamboo Charcoal Memory Foam
- Medium-firm feel aims for support and pressure relief.
- Charcoal-infused foam adds a layered construction.
- CertiPUR-US and OEKO-TEX certifications included.
Best For: Full-size sleepers wanting a budget-friendly medium-firm mattress with charcoal-infused foam.
Cooling Choice
Dyonery 10-inch gel memory foam queen
- Gel-infused charcoal foam for cooler sleep
- Medium-firm feel supports multiple positions
- CertiPUR-US and Oeko-Tex certified foam
Best For: Cooler medium-firm support on a budget
Compact Support
Novilla 6-inch full memory foam mattress
- 3-layer foam design with medium-firm feel
- Natural fiber foam helps manage moisture
- Reinforced edges and 100-night trial
Best For: Full-size setups needing a thin, supportive mattress
Best for Comfort
FDW 10-inch queen gel memory foam mattress
- Ventilated gel foam helps with airflow and cooling
- Removable, machine-washable cover for easy care
- Medium feel with CertiPUR-US certified materials
Best For: Easy-care cooling support in a medium feel
Budget-Friendly Cooling Pick
MLILY 8 Inch Full Green Tea Memory Foam Mattress
- Medium-firm feel supports most sleep positions
- Gel-infused foam helps manage heat
- Fiberglass-free and CertiPUR-US certified foam
Best For: budget shoppers wanting a cooling full-size memory foam mattress
Easy-Setup Value Choice
GAESTE 8 Inch Cooling Gel Memory Foam Full Mattress
- Medium feel balances support and pressure relief
- Gel-infused foam aims to keep sleep cooler
- CertiPUR-US foam and OEKO-TEX cover
Best For: value shoppers wanting a cooling full mattress with simple setup
Supportive Pressure-Relief Pick
EGOHOME 8 Inch Green Tea Medium Firm Full Mattress
- Patented memory foam spreads pressure evenly
- Breathable design with green tea gel for cooling
- Medium-firm support stays consistent year-round
Best For: sleepers wanting pressure relief and stable medium-firm support
Cooling Support – Novilla Queen 10" Memory Foam Mattress
If you want memory foam mattresses under 300 that aim for balanced comfort, this 10-inch Novilla is built around pressure relief, motion isolation, and a cooler sleep surface. The gel-infused foam and breathable knit cover make it a practical option for everyday use, especially if you sleep on your side or share the bed.
Best For: Shoppers who want a cooling, motion-reducing queen mattress with easy box delivery.
Pros:
- Gel-infused memory foam helps with pressure relief and spinal alignment.
- High-density foam absorbs motion for couples or light sleepers.
- Cooling features and a breathable cover are designed to reduce heat buildup.
- CertiPUR-US certified foam with a 100-day free trial and 10-year protection.
Cons:
- Needs up to 72 hours to fully expand after unpacking.
- Medium-feel memory foam may be too plush for shoppers who prefer a very firm bed.
Overall, this is a strong value pick if your priority is a cooler-feeling queen mattress with everyday support and simple setup.
Soft Everyday Pick – Amazon Basics Plush 8" Full Mattress
Amazon Basics Plush Memory Foam Mattress, Breathable, 8 Inch, Full, White/Grey, 75 x 54 x 8 inches
Check Price On AmazonFor shoppers comparing memory foam mattresses under 300, this Amazon Basics full-size model focuses on plush comfort, basic support, and airflow. Its three-layer build is designed to contour to the body while still offering a stable base, making it a simple choice for a guest room or a primary bed in a full size.
Best For: Full-size sleepers who want a soft-feeling mattress with certified materials and breathable foam layers.
Pros:
- Plush memory foam layer conforms to different sleeping positions.
- Middle foam layer has breathable air holes for airflow.
- Bottom foam layer adds durability, stability, and support.
- CertiPUR-US Certified Foam and STANDARD 100 by OEKO-TEX textile certification.
Cons:
- Only available in a full size, not queen.
- May take up to 72 hours to decompress and air out.
This is a straightforward buy if you want a softer full mattress with simple construction and certified materials rather than extra features.
Washable Cover Pick – KOW 12" Queen Memory Foam Mattress
If you’re shopping for memory foam mattresses under 300 and want a little more structure, this KOW queen uses a three-layer foam design with a medium-firm feel. The removable washable cover and 12-inch profile make it a practical option for buyers who want cooling comfort, easy care, and dependable support in one bed-in-a-box setup.
Best For: Buyers who want a medium-firm queen mattress with a washable cover and higher weight support.
Pros:
- Three-layer foam build combines gel memory foam, breathable foam, and support base foam.
- Medium-firm feel is meant to balance comfort and support.
- Removable, washable cover makes cleanup easier.
- CertiPUR-US certified and made in the USA.
Cons:
- Needs 24-72 hours to fully unfold after opening.
- The 12-inch profile may be thicker than some budget shoppers need.
As a budget-friendly queen option, it stands out most for its washable cover and support-focused construction rather than a super-soft feel.
Budget Full Option – NapQueen 8" Bamboo Charcoal Memory Foam
NapQueen 8 Inch Full Size Mattress, Bamboo Charcoal Memory Foam Mattress, Bed in a Box
Check Price On AmazonThis NapQueen full mattress is a compact choice for anyone searching for memory foam mattresses under 300 with a medium-firm feel and simple setup. The charcoal-infused foam, orthopedic-leaning design, and breathable certification mix make it a reasonable pick for a straightforward full-size bed.
Best For: Full-size sleepers who want a medium-firm, budget-friendly mattress with charcoal-infused foam.
Pros:
- Medium-firm feel supports a balance of cushioning and spinal alignment.
- Charcoal-infused memory foam and multiple layers add structure.
- CertiPUR-US foam and OEKO-TEX textiles provide material certifications.
- Compact boxed shipping makes delivery and setup easier.
Cons:
- Full size only, with a 350-pound maximum capacity.
- May need extra time to fully inflate in colder rooms.
This is a sensible value mattress if you want a full-size bed with a firmer feel and a low-fuss unboxing process.
Cooling Choice – Dyonery 10-inch gel memory foam queen
If you want memory foam mattresses under 300 with a stronger cooling focus, this Dyonery 10-inch queen is built around gel-infused charcoal foam that helps move heat away faster than standard foam. Its medium-firm feel is aimed at balanced comfort, so it can work well if you want pressure relief without sinking too deeply.
Best For: Sleepers who want a cooler medium-firm memory foam feel with broad support.
Pros:
- Gel-infused charcoal memory foam is designed to dissipate body heat quickly.
- Medium-firm 6-7/10 feel supports spinal alignment across sleeping positions.
- CertiPUR-US and Oeko-Tex Standard 100 certified foam adds peace of mind.
- Compatible with box springs, adjustable beds, floors, and hospital beds.
Cons:
- Non-quality-related returns are not accepted after opening.
- Needs about 12 hours to fully expand.
This is a practical pick if cooling and steady support matter more than a plush feel. It offers a straightforward mattress-in-a-box setup and a 10-year limited warranty, which helps round out its value for budget-conscious shoppers.
Compact Support – Novilla 6-inch full memory foam mattress
For shoppers looking at memory foam mattresses under 300, this Novilla full-size 6-inch model keeps things simple with a three-layer foam build and a cooler-feeling cover. Its medium-firm profile and reinforced edge support make it a practical choice for smaller rooms, kids, or anyone who wants a thinner mattress with steady support.
Best For: Full-size sleepers who want a thinner, supportive mattress with a cool-touch sleep surface.
Pros:
- Three-layer foam system combines comfort foam, base foam, and support foam.
- Natural fiber infused foam is designed to absorb moisture and help keep the surface cool.
- Reinforced edge support helps prevent slipping near the sides.
- Includes a 100-night trial and 10-year limited warranty.
Cons:
- Only 6 inches thick, so it may feel slimmer than higher-profile mattresses.
- Needs at least 72 hours to fully expand.
This mattress makes sense if you want an affordable, lower-profile bed with cooling-minded materials and dependable everyday support. It is especially appealing for full-size setups where simplicity and easy setup matter.
Best for Comfort – FDW 10-inch queen gel memory foam mattress
This FDW queen is a solid option among memory foam mattresses under 300 if you want cooling, pressure relief, and an easy-care cover in one package. The 10-inch build uses gel memory foam over a high-density base, aiming for a medium feel that supports back, side, or stomach sleepers.
Best For: Shoppers who want a medium-feel gel memory foam mattress with a removable washable cover.
Pros:
- Ventilated gel memory foam is designed to improve airflow and regulate temperature.
- Dual-layer construction pairs contouring comfort with high-density support foam.
- Removable, machine-washable cover makes maintenance easier.
- CertiPUR-US certified and rated for up to 1000 pounds.
Cons:
- Needs up to 72 hours to fully expand.
- Medium feel may not suit sleepers who want a very soft or very firm mattress.
Overall, this is a strong value pick if you want a simple mattress-in-a-box with cooling foam and low-maintenance upkeep. The washable cover and balanced support make it especially convenient for everyday use.
Budget-Friendly Cooling Pick – MLILY 8 Inch Full Green Tea Memory Foam Mattress
If you’re comparing memory foam mattresses under 300, this 8-inch MLILY full size option is built around a practical medium-firm feel, cooling gel foam, and easy boxed delivery. It aims to balance pressure relief and support without feeling overly soft or overly rigid.
Best For: Sleepers who want a medium-firm full mattress with cooling gel foam, fiberglass-free construction, and simple mattress-in-a-box setup.
Pros:
- Medium-firm feel is designed to support most body types and sleep positions.
- Gel-infused foam helps with heat dissipation for a cooler sleep surface.
- CertiPUR-US certified foam and fiberglass-free FR inner cover add peace of mind.
- Arrives compressed in a box and expands within about 2 hours.
Cons:
- Only available in an 8-inch profile, so it may feel slim for shoppers wanting a thicker mattress.
- Hand wash care instructions are less convenient than removable-washable covers.
Overall, this MLILY mattress is a straightforward value pick for buyers who want the core benefits of memory foam without paying for extra frills. It leans supportive, cooling, and easy to set up, which makes it a strong candidate for budget-conscious full-size shoppers.
Easy-Setup Value Choice – GAESTE 8 Inch Cooling Gel Memory Foam Full Mattress
For shoppers looking at memory foam mattresses under 300, this GAESTE full mattress focuses on affordable comfort, cooling gel foam, and a medium feel that aims to strike a balanced level of support. It’s designed to be an uncomplicated choice for a primary bedroom, guest room, or any place you want a dependable bed in a box.
Best For: Budget-minded buyers who want a medium-feel full mattress with cooling gel memory foam and easy setup.
Pros:
- Gel-infused memory foam is designed for all-season cooling comfort.
- Medium feel offers stable support and pressure relief for shoulders, hips, and back.
- CertiPUR-US certified foam and OEKO-TEX certified cover support safer sleep.
- Ships compressed and rolled for easier handling and setup.
Cons:
- Needs up to 72 hours to fully expand after unpacking.
- Only offered in an 8-inch profile, which may not suit shoppers wanting a taller mattress.
As a value-focused option, this GAESTE mattress keeps the buying decision simple: cooling gel foam, balanced support, and straightforward box delivery. It’s a practical pick if you want a low-cost full mattress that covers the essentials well.
Supportive Pressure-Relief Pick – EGOHOME 8 Inch Green Tea Medium Firm Full Mattress
If you’re shopping memory foam mattresses under 300 and want a supportive feel, this EGOHOME full mattress is built around pressure relief, temperature regulation, and consistent medium-firm comfort. Its 8-inch profile and green tea gel foam make it a practical option for everyday use across different sleep positions.
Best For: Sleepers who want a medium-firm full mattress with pressure relief, breathable foam, and year-round consistency.
Pros:
- Patented memory foam is designed to absorb and distribute body pressure evenly.
- Body-conforming support works across multiple sleep positions and helps reduce motion noise.
- Breathable foam structure with green tea gel aims to keep the mattress cool and fresh.
- Stable foam construction is intended to maintain consistent firmness across temperature changes.
Cons:
- Only available in an 8-inch thickness, which may feel basic to shoppers wanting a plusher build.
- Hand wash care instructions mean upkeep is less convenient than a removable cover.
This EGOHOME mattress is a solid pick if you value pressure relief and dependable medium-firm support more than extra plushness. It stands out as a practical everyday mattress for people who want a cooler-feeling memory foam bed with steady performance.
How We Picked the Best Memory Foam Mattresses Under 300
For Memory Foam Mattresses Under 300, the biggest challenge is finding real comfort without sacrificing durability or support. We prioritized mattresses with a clear balance of firmness, breathable materials, and reasonable thickness for everyday use. We also looked at whether each model is suitable for common bed sizes and whether it offers features that matter at this price, such as gel infusions, charcoal or green tea layers, and washable covers.
Quick Comparison
Most budget memory foam mattresses fall into a few practical categories: thinner 6- to 8-inch models for lighter sleepers, and 10- to 12-inch options that usually feel plusher and provide more pressure relief. In this group, full-size models often skew more affordable, while queen sizes tend to offer more value if you want room to spread out. Medium or medium-firm feels are usually the safest choice for mixed sleep positions.
Key Buying Factors for Memory Foam Mattresses Under 300
Thickness and Support
Thicker mattresses generally offer better contouring and more buffer between you and the base layer. If you sleep on your side or want a softer feel, consider 10 inches or more. Back and stomach sleepers often do better with medium-firm models that resist excessive sink.
Cooling Features
Budget foam can trap heat, so look for gel memory foam, breathable covers, bamboo charcoal, or green tea treatments. These won’t make a mattress cold, but they can improve airflow and help reduce the sticky feel some foam beds create.
Motion Isolation and Pressure Relief
One of the main reasons people choose foam is motion isolation. If you share a bed, memory foam can help reduce partner disturbance. It’s also useful for easing pressure at the shoulders and hips, especially for side sleepers.
Certifications and Materials
Check for fiberglass-free construction if that matters to you, along with CertiPUR-US or similar foam standards when listed. A removable, washable cover can also make a budget mattress easier to live with long term.
Who Should Buy Which Memory Foam Mattresses Under 300?
If you want the softest feel, look for plusher 8- to 10-inch mattresses with gel or breathable covers. If you prefer stronger support, choose a medium-firm 10- to 12-inch option. Lightweight sleepers, guest rooms, and college setups can often make good use of thinner models, while couples and everyday primary-bed shoppers usually get more value from thicker Memory Foam Mattresses Under 300 with better edge-to-edge stability.
For most buyers, the sweet spot is a medium-firm mattress with at least 8 inches of foam and one cooling-focused material. That combination tends to offer the broadest comfort range without pushing past the budget.