Finding a supportive mattress on a tight budget does not have to mean settling for poor comfort. The best memory foam mattresses under 300 can deliver pressure relief, motion control, and a surprisingly cozy feel for everyday sleep.
In this roundup, we focused on value, material quality, thickness, and overall comfort to help you compare the strongest options without overspending.
Best 10 Memory Foam Mattresses Under 300 Picks for 2026
Cooling Pressure Relief Pick
Novilla 10 Inch Queen Memory Foam Mattress in a Box
- Gel-infused foam targets pressure relief at key contact points.
- High-density layers help reduce motion transfer for couples.
- Breathable cover and cooling foam support a cooler sleep surface.
Best For: Couples and side sleepers seeking a cooling queen mattress
Compact Medium-Firm Choice
NapQueen 8 Inch Full Size Medium-Firm Mattress
- Medium-firm foam aims to support alignment and comfort.
- CertiPUR-US foams and OEKO-TEX textiles add reassurance.
- Bed-in-a-box packaging makes delivery and setup simple.
Best For: Full-size beds and guest rooms needing balanced support
Cooler Medium Feel Option
Dyonery 10 Inch Queen Gel Memory Foam Mattress
- Gel-infused charcoal foam is built for better heat dissipation.
- Medium-firm support suits back, side, and combination sleepers.
- CertiPUR-US and Oeko-Tex certifications add peace of mind.
Best For: Hot sleepers wanting a cooler medium-firm queen mattress
Budget Full-Size Support
6 Inch Full Size Medium Memory Foam Mattress
- Dual-layer foam offers a simple balance of softness and support.
- Breathable washable cover helps keep the bed fresh.
- Low-profile design and boxed shipping make it easy to move.
Best For: Budget-conscious full-size setups and guest rooms
Premium Support Pick
KOW 12 Inch Queen Memory Foam Mattress
- 12-inch three-layer foam build
- Removable, washable cover
- CertiPUR-US certified and fiberglass free
Best For: buyers who want a thicker medium-firm queen mattress with easy-care features
Compact Budget Pick
Novilla 6 Inch Full Memory Foam Mattress
- 3-layer foam with support-focused build
- Breathable cover and cooler sleep materials
- 100-night trial and 10-year warranty
Best For: kids’ rooms, guest rooms, and smaller spaces
Cooling Value Pick
FDW 10 Inch Queen Gel Memory Foam Mattress
- Gel-infused foam for cooler sleep
- Dual-layer queen construction with support core
- Removable, machine-washable cover
Best For: all-position sleepers wanting a medium-firm cooling queen
Best with Extra Features
GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress
- Gel-infused foam helps manage heat.
- Medium feel balances support and pressure relief.
- CertiPUR-US foam and OEKO-TEX cover add reassurance.
Best For: Affordable cooling comfort for a full-size bed
Balanced Medium-Firm Choice
MLILY 8 Inch Full Mattress in a Box
- Medium-firm feel supports most body types and sleep positions.
- Gel infusion helps with heat dissipation.
- Fiberglass-free FR inner cover and CertiPUR-US foam add reassurance.
Best For: Shoppers wanting balanced support in a full-size memory foam mattress
Pressure Relief Pick
EGOHOME Full Size Memory Foam Mattress 8 Inch
- Patented memory foam focuses on even pressure distribution.
- Green tea gel and bubble-hole structure support airflow.
- Medium-firm feel aims for stable, year-round comfort.
Best For: Pressure relief and breathable comfort in a full-size mattress
Cooling Pressure Relief Pick – Novilla 10 Inch Queen Memory Foam Mattress in a Box
If you want memory foam mattresses under 300 that focus on pressure relief and cooling, this Novilla 10-inch queen is a practical place to start. Its gel-infused memory foam, motion-absorbing support layers, and breathable cover are aimed at sleepers who want a softer, contouring feel without sacrificing stability.
Best For: Couples, side sleepers, and queen bed shoppers who want cooling comfort and motion isolation on a budget.
Pros:
- Gel-infused memory foam helps relieve pressure points at the hips, shoulders, and lower back.
- High-density foam and multiple layers add support plus motion isolation for shared beds.
- Cooling features include a soft knitted cover and breathable construction.
- CertiPUR-US certified foam with a 10-year protection and 100-day free trial sleep period.
Cons:
- Requires up to 72 hours to fully expand after unboxing.
- Hand wash only care may be less convenient than a removable washable cover.
This Novilla model stands out if your priority is a medium-plush feel with cooling and dependable everyday support. It looks especially appealing for couples or light sleepers who want reduced motion transfer in a queen-size mattress.
Compact Medium-Firm Choice – NapQueen 8 Inch Full Size Medium-Firm Mattress
NapQueen 8 Inch Full Size Mattress, Bamboo Charcoal Memory Foam Mattress, Bed in a Box
Check Price On AmazonFor shoppers comparing memory foam mattresses under 300 in a smaller size, this NapQueen full mattress is a straightforward medium-firm option. It uses CertiPUR-US certified foams and OEKO-TEX Standard 100 textiles, and its compressed bed-in-a-box design makes setup and transport easier.
Best For: Full-size beds, guest rooms, and sleepers who want balanced medium-firm support in a compact mattress.
Pros:
- Medium-firm feel aims to balance cushioning and support for spinal alignment.
- CertiPUR-US certified foams and OEKO-TEX Standard 100 textiles.
- Compressed packaging simplifies delivery, moving, and setup.
- Expands to full shape within about 72 hours under normal conditions.
Cons:
- Only 8 inches thick, so it may feel less substantial than thicker mattresses.
- Colder rooms may slow the inflation and expansion process.
This is a sensible pick if you want a no-fuss full-size mattress with medium-firm support and easy unboxing. It makes the most sense for guest rooms, apartments, or anyone prioritizing value and simple setup over premium thickness.
Cooler Medium Feel Option – Dyonery 10 Inch Queen Gel Memory Foam Mattress
If you are shopping memory foam mattresses under 300 and want a cooler feel, this Dyonery queen focuses on temperature control and balanced support. The gel-infused charcoal memory foam is designed to regulate heat quickly while still contouring to the body for a medium-firm rest.
Best For: Hot sleepers and all-position sleepers who want a medium-firm queen mattress with quick setup.
Pros:
- Gel-infused charcoal memory foam is designed to dissipate body heat faster than standard foam.
- Medium-firm feel supports spinal alignment across multiple sleep positions.
- CertiPUR-US and Oeko-Tex Standard 100 certifications help confirm safer materials.
- Compatible with many bed frames and expands in about 12 hours.
Cons:
- Non-quality-related returns after opening are not accepted.
- The mattress may feel too structured for sleepers who prefer a very soft bed.
This model is a strong fit if cooling is your top concern and you still want a supportive medium feel. The quicker expansion time also makes it appealing for shoppers who want to use the mattress sooner after delivery.
Budget Full-Size Support – 6 Inch Full Size Medium Memory Foam Mattress
Among memory foam mattresses under 300, this 6-inch full-size option is built for simple comfort, pressure relief, and easy setup. Its dual-layer foam construction combines memory foam and high-density foam for a balanced feel, while the breathable washable cover adds everyday convenience.
Best For: Budget shoppers, guest rooms, and full-size beds that need an easy-to-move medium mattress.
Pros:
- Dual-layer foam combines memory foam and high-density foam for balanced support.
- Motion reduction can help minimize partner disturbances.
- Breathable knit cover is washable for easier care.
- Compressed packaging makes the mattress easier to carry and set up.
Cons:
- At 6 inches thick, it is slimmer than many standard mattresses.
- Full expansion can take 48 to 73 hours after unboxing.
This mattress works well if you want a simple, affordable full-size bed with basic pressure relief and practical maintenance. It is a good fit for guest spaces, kids’ rooms, or anyone who values easy handling more than a thicker profile.
Premium Support Pick – KOW 12 Inch Queen Memory Foam Mattress
If you want memory foam mattresses under 300 with a thicker feel and a more substantial support profile, this 12-inch KOW queen is built around layered comfort and stability. The top gel memory foam layer is designed for breathability and contouring, while the deeper support foam aims to keep the spine aligned and reduce pressure.
Best For: Shoppers who want a medium-firm queen mattress with a washable cover, USA-made foam, and a taller build.
Pros:
- Three-layer foam design combines gel memory foam, comfort foam, and support foam.
- Removable, washable cover makes maintenance easier.
- CertiPUR-US certified foam and fiberglass-free construction.
- Supports up to 800 pounds and is meant to resist sagging.
Cons:
- Requires 24-72 hours to fully expand after unboxing.
- Medium-firm feel may be too supportive for buyers wanting a plush mattress.
This is the most feature-packed option here if you want a thicker mattress and a balanced feel. Its cooling fabric, stable support core, and washable cover make it practical for everyday use.
Compact Budget Pick – Novilla 6 Inch Full Memory Foam Mattress
For memory foam mattresses under 300, this Novilla full-size model keeps things simple with a compact 6-inch profile and a three-layer foam system. The design focuses on cool sleep, pressure relief, and firm support, making it a practical fit for smaller spaces or lighter-duty use.
Best For: Kids’ rooms, guest spaces, and sleepers who want a thinner full-size mattress with cooling and medium-firm support.
Pros:
- Three-layer foam system includes natural fiber infused foam, high-density base foam, and support foam.
- Breathable knitted cover and moisture-absorbing foam help keep the sleep surface cooler.
- Medium-firm feel offers pressure relief with supportive pushback.
- CertiPUR-US certified with a 100-night trial and 10-year limited warranty.
Cons:
- 6-inch profile is thinner than many standard mattresses.
- Full size may be too small for shoppers needing more room.
This is a straightforward pick if you need an affordable, lower-profile mattress for a full bed. It stands out most for cooling materials and the child-friendly medium-firm design.
Cooling Value Pick – FDW 10 Inch Queen Gel Memory Foam Mattress
If you are comparing memory foam mattresses under 300, this FDW 10-inch queen is a value-focused option with gel-infused foam and a medium firmness level. It aims to deliver cooler sleep, pressure relief, and simple setup without adding unnecessary complexity.
Best For: Side, back, and stomach sleepers who want a medium-firm queen mattress with cooling gel foam and a washable cover.
Pros:
- Gel-infused memory foam is designed to improve airflow and temperature regulation.
- Dual-layer construction combines a 2.5-inch comfort layer with a high-density support core.
- Removable, machine-washable cover helps keep the mattress fresh.
- CertiPUR-US certified and rated for up to 1000 pounds.
Cons:
- Requires up to 72 hours to fully expand after unboxing.
- Medium firmness may not suit shoppers looking for a softer feel.
This model is a strong all-position choice if you want cooling features and straightforward support in a queen size. The dual-layer build and washable cover make it an easy mattress to live with day to day.
Best with Extra Features – GAESTE Full Size 8 Inch Cooling Gel Memory Foam Mattress
If you’re shopping for memory foam mattresses under 300, this GAESTE full-size 8-inch model is built around simple, practical comfort. The gel-infused foam is designed to help manage heat, while the medium feel aims to give a balanced mix of support and pressure relief for everyday sleeping.
Best For: Budget-conscious shoppers who want a cool-feeling, medium-feel mattress for a full bed, guest room, or primary bedroom.
Pros:
- Gel-infused memory foam helps manage heat for a cooler sleep surface.
- Medium feel provides balanced support without feeling overly soft or overly firm.
- CertiPUR-US certified foam and an OEKO-TEX certified cover add peace of mind.
- Comes compressed in a box for easier setup on most full-size frames, box springs, or platforms.
Cons:
- Requires up to 72 hours to fully expand after unboxing.
- 8-inch profile may feel modest compared with thicker mattresses.
Overall, this is a straightforward pick if you want affordable comfort with cooling features and a medium feel. It keeps the focus on the basics: pressure relief, safer materials, and easy setup.
Balanced Medium-Firm Choice – MLILY 8 Inch Full Mattress in a Box
Among memory foam mattresses under 300, this MLILY full-size option stands out for its medium-firm feel and cooling gel infusion. It’s designed to deliver a supportive, body-conforming surface without leaning too soft or too hard, which makes it easy to consider for everyday use.
Best For: Sleepers who want a medium-firm full mattress with cooling gel and fiberglass-free construction.
Pros:
- Medium-firm feel is positioned as a balanced option for most body types and sleep positions.
- Gel infusion helps dissipate heat while keeping the body-conforming feel of memory foam.
- CertiPUR-US certified foam supports safer materials and minimal off-gassing.
- Fiberglass-free FR inner cover avoids fiberglass and related irritation concerns.
Cons:
- Only an 8-inch profile, so it may feel basic compared with thicker builds.
- Needs time to expand after unboxing, even though the process is quick.
This is a sensible buy if you want a firmer, more supportive feel in a budget-friendly full mattress. The cooling gel and fiberglass-free construction are especially appealing for shoppers prioritizing comfort and peace of mind.
Pressure Relief Pick – EGOHOME Full Size Memory Foam Mattress 8 Inch
If you’re narrowing down memory foam mattresses under 300, this EGOHOME full-size 8-inch mattress is geared toward pressure relief and all-position comfort. Its patented foam is designed to distribute body pressure evenly, while the green tea gel and breathable structure aim to keep things feeling fresh.
Best For: Sleepers who want pressure relief, breathable cooling, and a medium-firm feel in a full-size mattress.
Pros:
- Patented premium memory foam is built to absorb and distribute pressure evenly.
- Body-contouring design supports multiple sleep positions and helps fill gaps along the spine.
- Green tea gel and bubble-hole structure are intended to improve airflow and regulate temperature.
- Stable foam structure is designed to maintain a consistent balance of softness and firmness.
Cons:
- No specific certification details were provided in the supplied notes.
- Cooling emphasis comes from foam design rather than a prominently stated cooling cover.
For shoppers who want a foam-forward mattress that focuses on pressure relief and steady support, this EGOHOME model is a strong contender. It keeps the formula simple: contouring comfort, breathable airflow, and a medium-firm feel that works year-round.
How We Picked These Memory Foam Mattresses Under 300
We looked for mattresses that balance price with the features shoppers actually need: consistent support, decent foam density for the price, practical thickness options, and bedroom-friendly designs like bed-in-a-box shipping. We also favored models with broader appeal for side, back, and combination sleepers.
Quick Comparison
For most shoppers, 8- to 10-inch models are the sweet spot in this price range because they usually offer better cushioning and support than thinner budget beds. Six-inch mattresses can work well for guest rooms, kids, bunk beds, or lighter sleepers, while 12-inch options may feel plusher and more substantial if you want a taller profile.
Key Buying Factors for Memory Foam Mattresses Under 300
Thickness and Support
Thicker mattresses generally provide more contouring and a more stable feel, but the best choice depends on body weight and sleep position. If you want more sink and pressure relief, look for 10 inches or more. If you need a firmer, simpler mattress for occasional use, 6 to 8 inches may be enough.
Feel and Firmness
Most Memory Foam Mattresses Under 300 aim for a medium or medium-firm feel because it suits the widest range of sleepers. Side sleepers often prefer a softer surface for shoulder and hip cushioning, while back and stomach sleepers usually need a firmer feel to keep the spine aligned.
Cooling and Cover Features
Budget memory foam can trap heat, so cooling gel, green tea, bamboo charcoal, and breathable covers are worth checking. These features do not make a mattress cold, but they can help reduce the sticky, overheated feeling some foam beds create.
Size and Room Use
Match the mattress size to the room and the sleeper. Full sizes are a smart fit for compact spaces, teens, or guest rooms, while queen sizes offer more room for couples and primary bedrooms.
Who Should Buy Which Memory Foam Mattresses Under 300?
Choose a 6-inch model if you need a simple, low-cost option for a guest room, kids’ bed, or bunk setup. Pick an 8-inch mattress if you want a balanced budget choice with easier handling and a moderate feel. Go with a 10- or 12-inch model if you want the most cushioned, bed-like experience available in this price bracket. If you sleep hot, prioritize cooling-gel or breathable cover designs. If motion isolation matters, standard memory foam is usually a strong fit.
Overall, the best Memory Foam Mattresses Under 300 are the ones that match your sleep position, room size, and comfort preferences without paying for extras you do not need.