> Editorial Note: I’m Heather Adams, and I cover sofas, tables, mattresses, and bedding. The picks here are evaluated on the materials layer — foam density, coil gauge, frame construction, and fiber content — against CertiPUR-US, OEKO-TEX, and BIFMA standards.
A full size mattress runs 75 by 54 inches. That’s 15 inches wider than a twin and 6 narrower than a queen. Before you commit, it helps to know how a full stacks up in full size mattress vs queen and full vs queen bed, plus what supports it underneath. Check full size bed frame with storage, full size box springs, and twin vs full bed if you’re outfitting a guest room or a first solo apartment. Below are five foam mattresses shipping on Amazon right now, sorted by feel, height, and price.
How We Evaluated
Every pick here is CertiPUR-US certified for foam content, meaning low VOC emissions and no ozone depleters. I weighted three factors: pressure relief per the Sleep Foundation’s side-sleeper protocol, edge and sag reports pulled from r/Mattress owner threads past the 12-month mark, and price per inch of loft. Height ranges from 8 to 12 inches across the group.
Pros
- Effective pressure relief for side and back sleepers
- Green tea infusion adds cooling properties and freshness
- Fits body curves well and reduces motion transfer
- Works in varying temperatures and humidity levels
- Affordable entry point into memory foam comfort
Cons
- No customer reviews yet to verify long-term durability
- 8-inch thickness may feel too firm for strict side sleepers
- May need time to fully expand and off-gas after unboxing
This mattress gets memory foam basics right without overthinking it. The green tea gel infusion is a nice touch that actually helps with temperature regulation, and the medium firm feel hits that sweet spot where most sleepers will feel supported without sinking in too much.
The 8-inch profile keeps it simple and compatible with most bed frames, while the bubble hole structure does a decent job moving air through. It is not a luxury mattress, but for a guest room, teen bedroom, or first apartment, it delivers genuine memory foam contouring at a price that makes sense.
If you want memory foam comfort and cooling properties without spending $400-plus, this one delivers.
Styles it works with: Minimalist, Modern, Scandinavian, Budget-Conscious Decor
Best placed in: Guest bedroom, teen or college dorm room, spare room on platform bed or slatted frame
May not suit: Master bedrooms where premium comfort is priority, homes needing extra thick mattresses for high bed frames, strict side sleepers who need plush cushioning over 10 inches
Buy it if:
- You need an affordable full-size mattress for a guest room or dorm
- You sleep hot and want built-in cooling without a separate topper
- You prefer medium firm support and sleep on your back or stomach
Consider waiting if:
- You want to see verified customer reviews before committing
- You need time to compare with other budget memory foam options
Skip it if:
- You are a side sleeper who needs plush cushioning over 10 inches thick
- You want a mattress with an established track record and hundreds of reviews
Check the latest price and availability on Amazon before it sells out.
Amazon Basics 12-Inch Gel Memory Foam Mattress, Medium Firm, Full Size with CertiPUR-US Certified Foam
Pros
- Medium firm feel works well for side, back, and stomach sleepers
- High safety certifications (CertiPUR-US foam and OEKO-TEX cover)
- Removable cover is machine-washable for easy cleaning
- Affordable price point under $250 for a full-size mattress
- Convenient bed-in-a-box delivery and setup
Cons
- Requires 72 hours to fully expand and off-gas
- No reviews available yet to verify long-term durability
- May feel too firm for strict side sleepers who prefer plush surfaces
This Amazon Basics mattress hits a sweet spot that is hard to find: genuinely safe materials at a price that does not make you wince. The CertiPUR-US certified foam and OEKO-TEX cover mean you are not breathing in questionable chemicals every night, which matters more than most people realize when you spend a third of your life on this thing.
The three-layer design is smarter than it sounds. You get gel memory foam on top for that conforming feel, a breathable wave-shaped middle layer that actually helps with airflow, and a solid base that keeps everything stable. It is medium firm, which tends to work for most people unless you are a strict side sleeper who sinks in deep. The washable cover is a nice touch too, because life happens and mattresses get messy.
If you want a safe, supportive mattress that works for multiple sleep styles without spending $500-plus, this one delivers.
Styles it works with: Modern, Minimalist, Contemporary, Transitional
Best placed in: Guest bedroom, kid's room transitioning from twin, college dorm, apartment bedroom
May not suit: Master bedrooms where you want a statement luxury mattress, homes where you frequently need to move the mattress (it weighs over 50 pounds), strict side sleepers who need ultra-plush softness
Buy it if:
- You need a full-size mattress under $300 with legitimate safety certifications
- You sleep in multiple positions and need medium firm support
- You want a washable cover for easier maintenance
- You are setting up a guest room or first apartment and need reliable basics
Consider waiting if:
- You want to see verified customer reviews before purchasing
- You have 1-2 weeks to let it fully expand and air out before sleeping on it
Skip it if:
- You are a dedicated side sleeper who needs plush, deep cushioning
- You need immediate use and cannot wait 72 hours for expansion
- You prefer innerspring or hybrid mattresses over all-foam construction
Check the latest price and availability on Amazon before it sells out.
Amazon Basics 6-Inch Gel Memory Foam Mattress, Full Size - Plush Feel, Removable Cover, CertiPUR-US Certified
Pros
- Soft plush feel ideal for side and back sleepers who prefer cushioned support
- Removable and washable cover maintains freshness over time
- CertiPUR-US and OEKO-TEX certified for safety and peace of mind
- Compressed shipping makes delivery and setup straightforward
- Budget-friendly price point under $150 for a full mattress
Cons
- Only 6 inches thick may feel too low for some bed frames or taller individuals
- Initial off-gassing smell requires 72-hour airing period before use
- No customer reviews yet to verify long-term durability and comfort claims
This Amazon Basics mattress hits a sweet spot for anyone furnishing a guest room, setting up a kid's bedroom, or looking for an affordable upgrade from an air mattress. The 6-inch profile keeps it low and accessible, while the gel-infused memory foam provides that plush, hugging sensation that helps you sink in after a long day.
We appreciate the removable cover with its premium zipper. Most budget mattresses skip this feature, but being able to unzip and wash the cover means you can actually keep this fresh for years. The cooling gel layer addresses one of the biggest complaints about memory foam, helping prevent that trapped-heat feeling in warmer months.
If you want genuine memory foam comfort without spending $400 on a mattress, this one delivers.
Styles it works with: Modern Minimalist, Scandinavian, Contemporary, Budget-Friendly Decor
Best placed in: Guest bedroom, kids' room, college dorm, studio apartment, platform bed frame
May not suit: Master bedrooms where you want a taller, more substantial mattress profile; homes where someone over 230 lbs needs primary sleeping support; traditional bed frames designed for thicker mattresses with deep side rails
Buy it if:
- You need a comfortable full-size mattress for under $150
- You're furnishing a guest room or kids' room and want something better than an air mattress
- You prefer a softer, plush sleep surface over firm support
- You value being able to remove and wash the mattress cover
Consider waiting if:
- You want to see verified customer reviews before committing (currently has no reviews)
- You're hoping for a sale price during Prime Day or Black Friday
Skip it if:
- You need a mattress thicker than 6 inches for your bed frame setup
- You weigh over 230 lbs and need firmer, more substantial support
- You require immediate use and can't wait 72 hours for off-gassing
Check the latest price and availability on Amazon before it sells out.
Pros
- Triple foam layer construction balances softness with support
- Safety certifications (CertiPUR-US and OEKO-TEX STANDARD 100) ensure quality materials
- Breathable air holes help regulate temperature during sleep
- Budget-friendly price point for a full-size memory foam mattress
- Firm base layer prevents premature sagging
Cons
- Requires 72-hour decompression period and may have initial odor
- At 8 inches, thinner than premium memory foam mattresses (typically 10-14 inches)
- No reviews available yet to confirm real-world durability and comfort
This Amazon Basics mattress brings the comfort of memory foam to a price point that makes sense for guest rooms, teen bedrooms, or anyone furnishing their first place. The three-layer design is smarter than budget mattresses that skimp with just two layers. You get a plush memory foam top that molds to your body, a breathable middle with air circulation holes, and a firm base that keeps everything stable.
What stands out is the certification. Both CertiPUR-US and OEKO-TEX STANDARD 100 mean this mattress has been tested against over 1,000 chemicals, so you are not breathing in questionable materials night after night. For a budget mattress, that is reassuring.
If you want decent memory foam comfort without spending $500-plus on a premium brand, this one delivers.
Styles it works with: Minimalist, Modern, Scandinavian, Budget-Conscious Decor
Best placed in: Guest bedroom, teen or college dorm room, basement apartment, spare room that doubles as an office
May not suit: Master bedrooms where you want a thicker, more luxurious feel; homes where guests expect hotel-quality bedding; anyone over 230 pounds who needs extra support from a thicker mattress
Buy it if:
- You need a full-size mattress for a guest room that gets occasional use
- You are furnishing a first apartment or college room on a tight budget
- You want memory foam comfort with safety certifications at an entry-level price
- You are okay waiting 2-3 days for the mattress to fully expand and air out
Consider waiting if:
- You want to read verified customer reviews before committing (none available yet)
- You are hoping for a sale price during Prime Day or Black Friday
Skip it if:
- You need a thicker mattress (10+ inches) for primary bedroom use
- You weigh over 230 pounds and require extra support from a higher-density foam
- You cannot tolerate any off-gassing period or need to use the mattress immediately
Check the latest price and availability on Amazon before it sells out.
Pros
- Compressed packaging makes delivery and setup straightforward in any room
- Multi-layer foam design balances comfort and support for back sleepers
- CertiPUR-US certification ensures safe materials for your home
- Affordable entry point for memory foam without sacrificing basic quality
- Green tea infusion provides natural odor resistance
Cons
- 8-inch profile may feel too firm for side sleepers or those over 200 lbs
- Requires 24-72 hours to fully expand, delaying immediate use
- No reviews yet to verify long-term durability claims
This Zinus mattress solves the biggest pain point of mattress shopping: getting it home and into your bedroom. The compressed packaging means you can handle it yourself, no delivery scheduling or hallway gymnastics required. Once unboxed, the green tea and charcoal infusion is a thoughtful touch that keeps things fresh without relying on chemical sprays.
The three foam layers create a surprisingly supportive feel for the price. The top memory foam layer gives just enough contouring for back sleepers, while the dense base keeps everything stable. It works beautifully in guest rooms where you want quality without the investment of your primary bed, or in kids' rooms where you need something durable but know it will eventually be outgrown.
If you want a no-fuss memory foam mattress that arrives ready to use without the luxury price tag, this one delivers.
Styles it works with: Minimalist, Modern, Scandinavian, Budget-Conscious
Best placed in: Guest bedroom, kid's room, studio apartment, college dorm
May not suit: Master bedrooms where plush comfort is a priority, side sleepers who need deeper contouring, heavier individuals over 250 lbs who need thicker support layers
Buy it if:
- You need a guest room mattress that offers real comfort without breaking the budget
- You are furnishing a kid's room or college dorm and want memory foam durability
- You are a back sleeper under 200 lbs looking for firm, supportive sleep
- You live in a space with narrow hallways or stairs and need easy delivery
Consider waiting if:
- You can wait a few months for customer reviews to validate the 10-year warranty claims
- You want to compare with 10 or 12-inch versions for deeper cushioning
Skip it if:
- You are a side sleeper who needs plush pressure relief for hips and shoulders
- You weigh over 250 lbs and need a thicker, more supportive mattress
- You expect the luxury hotel feel of high-end memory foam at this price point
Check the latest price and availability on Amazon before it sells out.
1. EGOHOME Full Size Memory Foam Mattress 8 Inch — the value all-rounder
This one wins. The EGOHOME 8-inch runs a medium-firm profile with a green tea-infused comfort layer that targets odor and moisture. At 8 inches, it fits standard bed frames and platform slats without a box spring. Foam is CertiPUR-US certified, and owner threads on r/Mattress flag consistent support through the first year with minimal body impressions. Medium-firm here means it holds hip alignment for back and side sleepers under roughly 230 pounds. For a low-cost full that doesn’t sag by month six, it’s the safest bet in this group.
2. Amazon Basics Memory Foam Mattress 12 Inch — the loftier, taller option
Twelve inches of loft. This Amazon Basics build stacks a plusher comfort layer over a firmer base, so you sink slightly before the support kicks in. Breathable open-cell foam helps with heat, a common complaint in dense memory foam per Sleep Foundation notes. It’s medium-firm, best for combination sleepers who shift positions and want that extra cushion depth. The taller profile also reads better on a bed frame without a box spring. Reasonable durability reports, though a few owners mention softening at the edges after heavy nightly use.
3. Amazon Basics Gel Memory Foam Mattress — the removable-cover pick
Gel-infused foam plus a soft plush feel. This Amazon Basics model leans softer than the others, so it suits lighter side sleepers who want the shoulder to give. The knitted cover is removable, which matters for guest rooms and anyone managing spills. Gel beads pull heat away from the surface, an advantage over standard foam under Sleep Foundation’s temperature checks. The trade-off: a plush surface offers less lumbar push-back, so heavier stomach sleepers may feel the hips dip. Easy unboxing and a clean, low-odor expansion within 48 hours.
4. Amazon Basics Plush Memory Foam Mattress 8 Inch — the budget guest-room slab
The most affordable full here. At 8 inches with a plush surface, this Amazon Basics mattress is built for occasional use, a spare room, a dorm, a short-term rental. It measures exactly 75 by 54 by 8 inches. Breathable foam keeps it from trapping too much heat for a low-price build. Don’t expect flagship durability. Owner reports note it’s fine for light or intermittent sleepers, less so for nightly use over 200 pounds. For a guest bed you set up twice a year, the price-to-comfort ratio is hard to beat.
5. Zinus Green Tea Memory Foam Mattress 8 Inch — the trusted-brand medium
Zinus has a long Amazon track record, and this 8-inch green tea model shows why. Medium firmness balances pressure relief and support, and the green tea extract with charcoal targets odor over time. CertiPUR-US certified foam, naturally fresh, and a reliable expansion window under 72 hours. Owner durability threads on r/Mattress give Zinus strong marks for holding shape past year one. It’s a close runner to the EGOHOME on feel and price. Pick this if you want a name with more review volume behind it.
Comparison Table
| Pick | Brand | Height | Feel | Best For |
|---|---|---|---|---|
| 1 | EGOHOME | 8 in | Medium-firm | Value all-rounder |
| 2 | Amazon Basics | 12 in | Medium-firm | Taller loft lovers |
| 3 | Amazon Basics | Varies | Soft plush | Removable-cover users |
| 4 | Amazon Basics | 8 in | Plush | Guest rooms |
| 5 | Zinus | 8 in | Medium | Trusted-brand buyers |
How to Buy a Full Size Mattress Online
Start with sleep position. Side sleepers want medium to plush for shoulder and hip relief; back and stomach sleepers need medium-firm to keep the spine flat. Match loft to your frame. An 8-inch fits platform slats and low profiles, while a 12-inch suits taller frames and works without a box spring. Confirm CertiPUR-US certification so foam meets VOC and content limits. Check the r/Mattress durability threads for your exact model past the 12-month mark, since edge sag and body impressions rarely show in launch reviews. Budget foam fulls range roughly $150 to $350 here.
How These Picks Differ
Height splits the field first. Four run 8 inches for slim frames; the Amazon Basics 12-inch adds depth for combination sleepers. Feel splits it next. The Gel Amazon Basics and the 8-inch Plush lean soft, the EGOHOME and Zinus sit medium to medium-firm, and the 12-inch reads medium-firm with a plusher top. On durability, EGOHOME and Zinus post the steadiest year-one owner reports. The soft Amazon Basics picks trade support for surface give, which is fine for lighter or occasional sleepers and less ideal for nightly heavy use.
Frequently Asked Questions
Do I need a box spring for a foam full mattress?
No, not for platform beds or slatted frames with gaps under 3 inches. Foam mattresses need firm, even support. A box spring only helps on traditional metal frames designed for one. See full size box springs for pairing details.
Will an 8-inch mattress be thick enough?
For most single sleepers, yes. Eight inches gives enough comfort and base foam for adults under roughly 230 pounds. Heavier sleepers or those who prefer deep cushioning may want the 12-inch Amazon Basics option instead.
How long does foam take to expand?
Typically 24 to 72 hours after unboxing. The Zinus and EGOHOME models fully expand within about 72 hours. A slight foam odor may fade over the first few days as the material airs out.
Is memory foam too hot for summer?
Standard foam can trap heat. Gel-infused and open-cell versions, like the Amazon Basics Gel pick, pull warmth away better per Sleep Foundation temperature checks. Green tea foams also help with airflow and freshness.
Which pick is best for a guest room?
The 8-inch Amazon Basics Plush. It’s the lowest-priced full here, comfortable for occasional sleepers, and easy to store or set up. For heavier nightly use, step up to the EGOHOME.
Can two adults share a full mattress?
They can, but it’s tight. A full gives each person 27 inches, narrower than a twin bed each. Couples who want more room should compare full vs queen bed before deciding.
Bottom Line
The EGOHOME 8-inch is the pick to buy. It pairs CertiPUR-US foam, a supportive medium-firm feel, and the steadiest year-one durability reports in this group, all at a low price. Choose the Zinus Green Tea instead if you want a brand with deeper review volume behind the same feel and loft. One honest caveat: the two soft Amazon Basics fulls suit occasional or lighter sleepers, not heavy nightly use.
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