Finding a comfortable mattress on a tight budget is easier when you know which features matter most. The best memory foam mattresses under $300 can provide pressure relief, motion isolation, and convenient bed-in-a-box delivery without the cost of a premium model.
This roundup compares 10 budget-friendly options in twin, full, and queen sizes, including cooling gel designs, medium-firm feels, washable covers, and certified foams. Use the guide below to narrow your choices by sleep position, room size, and comfort preference.
Best 10 Memory Foam Mattresses Under 300 Picks for 2026
Best Overall Value
- Three-layer gel and support foam construction
- Medium-firm feel with up to 800-pound capacity
- Washable cover and CertiPUR-US certified foam
Best For: Couples wanting a thicker, supportive queen mattress
Best Twin Mattress
NEO SLEEP 8-Inch Cooling Gel Mattress
- Cooling gel foam with breathable construction
- Medium feel for pressure relief and alignment
- Washable cover with fiberglass-free materials
Best For: Dorms, guest rooms, daybeds, and Twin frames
Best for Couples
Novilla 10-Inch Queen Mattress
- NanoGel foam helps with cooling and airflow
- Three layers absorb motion and vibration
- 10-year protection with certified materials
Best For: Couples seeking cooling and low motion transfer
Best Fiberglass-Free Full
LIFEMENT 8-Inch Matcha Mattress
- Matcha cooling gel foam with open-cell airflow
- 100% fiberglass-free certified construction
- Fits Full beds, trundles, daybeds, and bunks
Best For: Full sleepers wanting broad compatibility and fiberglass-free materials
Cooling Budget Pick
ZINUS 8-Inch Green Tea Cooling Gel
- Cooling gel and green tea-infused memory foam
- Medium feel with pressure-relieving support
- Twin size; 250-pound maximum capacity
Best For: Twin beds and back sleepers seeking a cooling-focused mattress
Versatile Full-Size Choice
EGOHOME 8-Inch Green Tea Memory Foam
- Medium-firm support for multiple sleep positions
- Cooling airflow design with green tea gel
- Full size with a stated 750-pound capacity
Best For: Combination sleepers wanting a full-size cooling mattress
Simple Low-Profile Value
Best Price Mattress 6-Inch Full
- 6-inch full-size memory foam design
- Green tea infusion with pressure relief
- CertiPUR-US foams and 10-year warranty
Best For: Full-size sleepers wanting a thinner, budget-friendly mattress
Cool-Sleep Value Pick
Avenco 6-Inch Gel Memory Foam Full Mattress
- 30% NanoGel infusion for airflow and heat absorption
- Four-layer design helps reduce motion transfer
- CertiPUR-US certified foam with odor and moisture control
Best For: Full-size sleepers seeking a compact, cooling mattress with low motion transfer
Thicker Support Pick
MLILY 8-Inch Green Tea Memory Foam Mattress
- 8-inch medium-firm design supports varied sleep positions
- Green tea gel foam helps with cooling and pressure relief
- Fiberglass-free inner cover with a 750-pound listed capacity
Best For: Sleepers who want a taller, medium-firm full mattress with cooling features
Simple Cooling Pick
Best Price Mattress 6-Inch Gel Full
- Medium-firm gel memory foam adapts for pressure relief
- Breathable design and cooling gel support airflow
- Compressed delivery with expansion within 72 hours
Best For: Full-size shoppers wanting a straightforward medium-firm cooling mattress
Best Overall Value – KOW 12-Inch Queen Mattress
For shoppers comparing memory foam mattresses under 300, the KOW Queen Mattress stands out for its thicker 12-inch profile, layered foam construction, and medium-firm feel. Its gel memory foam, breathable cover, removable washable cover, and fiberglass-free design add practical everyday convenience.
Best For: Couples and sleepers seeking a supportive queen mattress with motion isolation and a washable cover.
Pros:
- Three-layer design combines gel memory foam, comfort foam, and high-flex support foam.
- Medium-firm support accommodates up to 800 pounds.
- Removable, machine-washable cover and breathable knitted fabric.
- Made in the USA with CertiPUR-US certified foam and fiberglass-free construction.
Cons:
- Requires 24–72 hours to fully expand after unboxing.
- At 59 pounds, it may be less convenient to move than thinner mattresses.
The KOW is a strong all-around option when you want a substantial queen mattress with pressure-relieving foam, low motion transfer, and easy cover care. Confirm the current price and allow time for expansion before use.
Best Twin Mattress – NEO SLEEP 8-Inch Cooling Gel Mattress
Among memory foam mattresses under 300, this NEO SLEEP Twin mattress is a practical choice for compact rooms and flexible sleeping spaces. Its 8-inch medium-feel design pairs cooling gel foam with pressure-relieving support and a washable, fiberglass-free cover.
Best For: Twin beds in bedrooms, guest rooms, dorms, daybeds, and other space-conscious setups.
Pros:
- Gel-infused foam and a breathable structure help reduce heat buildup.
- Medium-feel foam contours to the body and helps distribute pressure.
- Removable, machine-washable cover with an anti-slip bottom.
- CertiPUR-US foam and an OEKO-TEX certified cover.
Cons:
- The 8-inch profile provides less cushioning depth than thicker mattresses.
- Recommended expansion time is up to 72 hours.
This mattress fits a useful middle ground for Twin sleepers who want cooling features, straightforward maintenance, and easy boxed delivery. Its compatibility with box springs, slatted bases, and solid foundations adds setup flexibility.
Best for Couples – Novilla 10-Inch Queen Mattress
The Novilla 10-Inch Queen is a compelling option among memory foam mattresses under 300 for sleepers who prioritize cooling and reduced partner disturbance. Its three foam layers combine NanoGel memory foam, comfort foam, and high-density support foam for pressure relief and balanced support.
Best For: Couples who want low motion transfer, temperature-regulating materials, and a medium feel.
Pros:
- 30% more NanoGel is designed to improve heat absorption and airflow.
- Three-layer construction helps absorb movement and vibration.
- CertiPUR-US foam and an OEKO-TEX Standard 100 certified cover.
- Includes 10-year protection and fits various queen bed frames.
Cons:
- Requires up to 72 hours to air out and reshape after delivery.
- The cover is described as breathable but no removable or washable feature is specified in the supplied details.
Novilla makes sense for couples looking for a medium queen mattress with cooling gel foam and motion absorption. Its boxed format simplifies delivery, while the certification details support a more carefully specified sleep setup.
Best Fiberglass-Free Full – LIFEMENT 8-Inch Matcha Mattress
For shoppers searching memory foam mattresses under 300, the LIFEMENT Full Mattress offers a straightforward 8-inch design with matcha cooling gel foam and a medium-firm feel. It is made for standard Full spaces, including platform beds, daybeds, trundles, and bunk beds.
Best For: Full-size sleepers who want fiberglass-free construction, cooling foam, and broad frame compatibility.
Pros:
- Three-layer system combines a stable base, transition foam, and matcha cooling gel foam.
- Medium-firm feel supports back, side, and stomach sleepers.
- 100% fiberglass-free construction with CertiPUR-US foam and an OEKO-TEX cover.
- Supports up to 400 pounds and includes a 10-year warranty.
Cons:
- The cover is spot-clean only rather than machine washable.
- Its 8-inch profile may offer less depth than taller alternatives.
- The supplied information does not specify a removable cover.
The LIFEMENT is a versatile Full-size pick when fiberglass-free materials and frame compatibility matter most. Its medium-firm, temperature-regulating design suits multiple sleeping positions, while the included warranty adds longer-term reassurance.
Cooling Budget Pick – ZINUS 8-Inch Green Tea Cooling Gel
If you’re shopping for memory foam mattresses under 300, this twin-size ZINUS model offers a cooling-focused design with pressure-relieving foam in an easy-to-handle box. Its medium feel and 8-inch profile are particularly suited to back sleepers and average-weight sleepers.
Best For: Twin beds, back sleepers, and shoppers who want cooling gel foam with a 10-year limited warranty.
Pros:
- Includes 2 inches of cooling gel and green tea-infused memory foam.
- Three-layer construction combines comfort foam with high-density base support.
- CertiPUR-US certified foam and boxed delivery simplify setup and buying.
- Designed to expand within 24–72 hours and includes a 10-year limited warranty.
Cons:
- This listing is for a twin mattress with a 250-pound maximum weight capacity.
- Full expansion may take longer in colder rooms.
- Care instructions call for spot cleaning or hand washing.
The ZINUS is a practical choice when cooling features and straightforward setup matter more than a thicker mattress. Allow up to 72 hours for full expansion before judging its final feel.
Versatile Full-Size Choice – EGOHOME 8-Inch Green Tea Memory Foam
Among memory foam mattresses under 300, the EGOHOME Full offers a medium-firm feel, cooling green tea gel, and support designed for multiple sleeping positions. Its full-size format and stated 750-pound maximum weight capacity make it a flexible option for a shared bed.
Best For: Full-size beds, combination sleepers, and shoppers prioritizing pressure relief, airflow, and temperature regulation.
Pros:
- Medium-firm memory foam is designed to fit changing sleep positions.
- Bubble-hole construction promotes airflow, while green tea gel helps regulate temperature.
- Rated features include pressure relief, durability, fire retardancy, and temperature regulation.
- Lists a 750-pound maximum weight capacity and a 10-year warranty.
Cons:
- The mattress is 8 inches thick, which may not suit shoppers seeking a taller profile.
- Hand washing is listed for care.
- As a boxed mattress, it may require time to settle after delivery.
The EGOHOME stands out for shoppers who want a full-size, medium-firm mattress with cooling and pressure-relief features. Its broad positioning across sleep styles makes it a useful all-around budget candidate.
Simple Low-Profile Value – Best Price Mattress 6-Inch Full
Best Price Mattress Full Mattress 6 inch Bed-In-A-Box, Green Tea Memory Foam White
Check Price On AmazonFor shoppers comparing memory foam mattresses under 300, this Best Price Mattress model keeps things simple with a 6-inch full-size design, green tea infusion, and layered foam support. It is a practical fit for buyers who prefer a lower profile and straightforward bed-in-a-box setup.
Best For: Full-size beds, lower-profile setups, and shoppers seeking pressure relief and motion isolation at an accessible price.
Pros:
- Memory foam is designed to contour to the body and relieve pressure points.
- Green tea infusion is intended to help keep the mattress fresh.
- Three layers combine memory foam, support foam, and high-density foam.
- CertiPUR-US certified foams, a cotton-based fire retardant, and a 10-year warranty are included.
Cons:
- The 6-inch profile provides less thickness than the other mattresses in this roundup.
- The supplied details do not specify a weight capacity.
- Hand washing is listed for care.
The Best Price Mattress is a sensible pick when you want a full mattress with a compact profile and core memory foam benefits. Its motion-isolation and pressure-relief claims may appeal to couples and budget-minded sleepers.
Cool-Sleep Value Pick – Avenco 6-Inch Gel Memory Foam Full Mattress
If you are comparing memory foam mattresses under 300, the Avenco Full Size Mattress stands out for shoppers who want a compact 6-inch profile with gel-infused foam, motion isolation, and a medium-plush feel. Its compressed-in-a-box setup works with a solid foundation or the floor, and the manufacturer recommends allowing up to 72 hours for expansion.
Best For: Budget-conscious full-size sleepers who prioritize cooling features, pressure relief, and low motion transfer.
Pros:
- 30% NanoGel infusion is designed to support heat absorption and airflow.
- Four-layer construction helps limit noise and movement between sleepers.
- CertiPUR-US certified foam and a skin-friendly polyester cover.
- Plant-based foam is designed to resist odors and moisture.
Cons:
- The 6-inch profile may provide less cushioning than thicker mattresses.
- Expansion can take up to 72 hours after unboxing.
- Maximum listed weight capacity is 500 pounds.
The Avenco is a practical choice when cooling materials and motion isolation matter more than a taller mattress design. Its medium-plush comfort and full-size dimensions make it a straightforward option for a value-focused bedroom setup.
Thicker Support Pick – MLILY 8-Inch Green Tea Memory Foam Mattress
Among memory foam mattresses under 300, the MLILY 8 Inch Full Mattress is worth considering if you prefer a taller medium-firm design. Its green tea gel foam comfort layer, cooling gel infusion, and fiberglass-free inner cover combine with a boxed delivery format that is designed to expand within about two hours.
Best For: Sleepers wanting a medium-firm full mattress with an 8-inch profile, cooling gel, and a higher listed weight capacity.
Pros:
- Medium-firm feel is rated about 6–7 out of 10 and is designed for multiple sleep positions.
- Two inches of green tea gel foam provide contouring and pressure relief.
- Fiberglass-free inner cover uses a cotton-polyester rib fabric.
- Listed maximum weight capacity is 750 pounds.
Cons:
- The cover requires hand washing according to the care instructions.
- Medium-firm construction may not suit shoppers seeking a plush feel.
- As with boxed mattresses, it needs unrolling and expansion before use.
The MLILY offers more height than the 6-inch options in this roundup while retaining a medium-firm feel. Its cooling gel, CertiPUR-US-certified foam, and fiberglass-free cover make it a well-specified pick for shoppers comparing value-oriented full mattresses.
Simple Cooling Pick – Best Price Mattress 6-Inch Gel Full
For shoppers narrowing down memory foam mattresses under 300, the Best Price Mattress 6 Inch Full offers a simple medium-firm setup with gel-infused memory foam, breathable construction, and pressure-relief features. It arrives compressed in a box and is designed to expand fully within 72 hours after unboxing.
Best For: Full-size shoppers seeking an uncomplicated, medium-firm gel memory foam mattress with a compact 6-inch profile.
Pros:
- Gel-infused foam adapts to the body for personalized comfort and support.
- Cooling technology and breathable construction are designed to help regulate temperature.
- Medium-firm feel balances support and comfort.
- Compressed packaging simplifies delivery and setup.
Cons:
- The single-layer construction is less elaborate than multi-layer alternatives.
- The 6-inch height may feel less substantial than an 8-inch mattress.
- Full expansion may take up to 72 hours.
This mattress keeps the design straightforward: gel memory foam, a medium-firm feel, and breathable construction in a convenient boxed format. It is a sensible value option for shoppers who want core cooling and pressure-relief features without a taller profile.
How We Picked the Best Memory Foam Mattresses Under 300
We focused on mattresses that offer practical value at an entry-level price. Our comparison considers available sizes, mattress height, firmness descriptions, cooling materials, pressure-relieving foam, removable or washable covers, and safety certifications such as CertiPUR-US. We also included both compact 6- and 8-inch models and thicker 10- and 12-inch options, since height affects support, feel, and suitability for different sleepers.
Because budget mattress specifications can vary by size, verify the exact dimensions, materials, warranty, trial period, and current price before ordering.
Quick Comparison
- Best for smaller rooms: Twin models save space and are often easier to move.
- Best all-around sizes: Full mattresses suit solo sleepers, guest rooms, and smaller bedrooms; queen models provide more room to stretch out.
- Best for extra cushioning: A 10- or 12-inch profile generally offers more room for comfort layers than a 6-inch mattress.
- Best for cooling: Look for gel-infused foam, breathable covers, and a stable room temperature.
- Best for shoppers prioritizing materials: Check for CertiPUR-US certification or clear statements about fiberglass-free construction.
Key Buying Factors for Memory Foam Mattresses Under $300
Size and Mattress Height
Choose a size that fits both the sleeper and the room. A thicker mattress may feel more substantial, but it can also weigh more and require deeper sheets. Confirm your bed frame’s size and weight recommendations before purchase.
Firmness and Sleeping Position
Side sleepers often prefer a softer surface with enough cushioning at the shoulders and hips. Back and stomach sleepers typically need a more supportive, medium-firm feel to help prevent excessive sinking. Body weight also changes how firm a mattress feels.
Cooling and Motion Isolation
Memory foam absorbs movement, which can help couples sleep with fewer disturbances. However, traditional foam may retain heat. Gel infusions and breathable covers can help, but no foam mattress stays equally cool for every sleeper.
Certifications and Cover Details
Check whether the foam is certified for low emissions and whether the cover is removable and washable. Follow the manufacturer’s care instructions, and do not remove any cover that is labeled as a required safety component.
Who Should Buy Which Memory Foam Mattresses Under 300?
Choose a twin model for a child, teen, compact guest room, dorm-style space, or solo sleeper who values easy handling. Choose a full model for one adult, a guest bed, or a bedroom where floor space matters. Choose a queen model if you want more sleeping room or share the bed regularly.
Choose a 6-inch mattress when low cost, light weight, and occasional use are the priorities. Choose an 8-inch model for a balanced everyday option. Choose a 10- or 12-inch mattress when added cushioning and a more substantial feel matter more than easy moving.
Finally, prioritize the firmness description that matches your sleeping position, then confirm the return policy and expansion instructions. Let a compressed mattress fully expand before judging its feel, and use the trial period responsibly if the mattress does not provide the expected support.