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MLILY Full Mattress in a Box, 6 inch Mattresses for Platform Bed Double Size Daybed Bunk, Memory Foam Medium Firm

Based on 1,939 reviews
Condition: New
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$129.00
Save $260.99 was $389.99

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At a glance

Condition
New
Style
6 in
Size
Full
Model
ME5-311-6FULL
Dimensions
75 x 54 x 6 in
Weight
25 lb
Color
White
In the box
Mattress Only

Features 6

  • 8% Polyester,92% Cotton
  • Unparalleled Quality Control You can rest easy knowing your mattress is made with high standards and eco-conscious practices. Our global production includes U.S.-based and overseas factories for consistent quality. More than 90% of mattress orders are fulfilled by our U.S. factories. Wake up feeling refreshed every morning.
  • Medium-Firm Feel - medium-firm is supportive for most body types and sleep positions. Too-soft mattresses dont give proper support and can cause back problems in the long run. Too-hard mattresses dont provide pressure point relief. The sweet point is our medium-firm (6-7 out of 10 on the firmness level scale) mattress strikes the right balance between comfort and support and promotes better sleep.
  • Gel Infused - our foam is infused with a cooling gel that helps in dissipating heat, allowing you to sleep cool while retaining memory foams original body-conforming and pressure-relieving features.

Specs 34

Brand MLILY
Size Full
Product Dimensions 75"L x 54"W x 6"Th
Item Weight 25 Pounds
Item Firmness Description Medium Firm
Top Style Tight Top
Cover Material Cotton-Polyester Blend
Number of Layers 4.0

Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


Perfect Twin Mattress for Kids – Comfortable and Great Quality!
Style: 5 Inch Size: Twin
We bought this MLILY twin mattress for our child’s bed, and it has been a great choice. The mattress arrived well-packed and expanded quickly. It’s the perfect thickness for a kid’s bed or bunk bed, with just the right balance of comfort and support. The memory foam feels soft but still medium-firm, which helps with good sleep and posture. There was no strong odor, and the quality feels very solid for the price. Our child sleeps comfortably and wakes up happy every morning. Made in the USA and an Amazon’s Choice product—this mattress definitely met our expectations. Highly recommended for kids’ beds, daybeds, or guest rooms! ... show more
Reviewed in the United States on December 19, 2025 by M Family

Perfect 5-Inch Mattress for a Larger Double Bed
Style: 5 Inch Size: Twin
I was looking for a mattress for my double bed that I sometimes convert into a larger bed, and this 5-inch mattress has been exactly what I needed. It’s the perfect balance of comfort and support soft enough to sleep comfortably but still firm and sturdy enough that it doesn’t sag or feel flimsy. The memory foam adapts nicely to the body, giving good lumbar support even for adults, while still being ideal for everyday use. Setup was easy, it expanded quickly out of the box, and there was no strong odor at all. The size and thickness feel just right for a double tolarge bed setup, and overall it’s a well made, comfortable mattress that I’m really happy with. ... show more
Reviewed in the United States on January 19, 2026 by Kevin

Real good quality
Style: 5 Inch Size: Twin
I would give the MLILY 5-inch Twin Mattress a full 5-star recommendation because it’s comfortable, supportive, and perfectly designed for kids’ beds. The medium-firm memory foam feels just right—not too soft or too hard—and provides good support for growing bodies. The low 5-inch profile makes it ideal and safer for bunk beds, daybeds, or trundles, and it was very easy to set up right out of the box. I also really like that it’s made in the USA and uses CertiPUR-US certified foam, which gives peace of mind about safety and quality. Overall, it’s an excellent value and a great choice for a child’s bedroom or guest space. ... show more
Reviewed in the United States on December 14, 2025 by Patricia K

Most importantly, no smell.
Style: 5 Inch Size: Twin
I just bought 2 of these mattresses for my kids & they’re pretty comfortable. No smell or any kind of odors. My kids think they’re really comfortable. They’re not a super thick mattress but are perfect for bunk beds so they’re not thicker than the railing so no kids fall off. They almost instantly puffed up, I’d say it took about 30 ish to an hour to puff all the way up. Excuse the mess on the bed but it’s a pretty nice bed. & a really good size too. Def will fit maybe up to a preteen. ... show more
Reviewed in the United States on March 8, 2026 by Xochi

Okay for what it is
Style: 8 Inch Size: Twin
Opened it up and it was 4 1/2in. Gave it 10hrs to fluff up and it’s now reached 7 1/4in. It’s fairly comfortable & my kids like it. Not something I’d choose for myself, but my kids are under 6 so this is the perfect budget mattress as I know I will be replacing them in like 1-2 years anyway. I mean kids. . . For reference I bought the 8in so I’m hopeful the two I got will fluff up to the 8in by tomorrow, but I’m not expecting it. ... show more
Reviewed in the United States on April 30, 2026 by Rebecca

MLILY 10-Inch Queen Mattress in a Box – Medium-Firm Gel Memory Foam
Style: 10 inch Size: Queen
⸻ ⭐ MLILY 10-Inch Queen Mattress in a Box – Review The MLILY Queen Mattress in a Box (10-inch) is a popular memory foam mattress designed to provide a medium-firm feel, ideal for a wide range of sleepers. Its gel-infused foam helps regulate temperature, while the foam layers conform to your body for pressure relief and support. Shipped compressed in a box, it’s easy to set up at home. ⸻ 🛏️ Pros ✔ Comfortable Medium-Firm Support • Great balance for back, side, and combination sleepers. • Offers proper spinal alignment and pressure point relief. ✔ Cooling Gel Memory Foam • Gel-infused layer keeps you cooler than traditional memory foam. • Reduces night sweating and heat retention. ✔ Easy Setup • Arrives compressed in a box and expands quickly within hours. • No box spring required for most bed frames. ✔ CertiPUR-US Certified • Free from harmful chemicals, heavy metals, and phthalates. ✔ Motion Isolation • Memory foam minimizes partner movement, ideal for couples. ⸻ 👎 Cons ❌ 10-Inch Profile • May feel thinner for heavier individuals or those used to thick hybrid mattresses. ❌ Initial Off-Gassing • Some buyers report a slight odor on opening, which disappears in a day or two. ❌ Medium-Firm Might Not Suit Everyone • Those preferring very plush or very firm mattresses may find it slightly less comfortable. ⸻ 🧠 Who It’s Best For ✔ Couples or solo sleepers who like medium-firm comfort ✔ Guest bedrooms, apartments, or anyone needing a mattress-in-a-box solution ✔ People seeking pressure relief and cooling benefits without a premium price ⚠ Not ideal for sleepers who want a very thick or ultra-plush mattress. ⸻ 📌 Final Verdict The MLILY 10-Inch Queen Mattress in a Box is a comfortable, supportive, and convenient mattress that balances pressure relief, cooling, and motion isolation. Its medium-firm feel works well for most sleepers, and the easy setup makes it a great option for home or guest use. ... show more
Reviewed in the United States on February 21, 2026 by Dinia geranson

Very Firm...
Style: 5 Inch Size: Twin
Got this mattress for a kid’s bed and it’s been a great buy so far. It has a nice medium-firm feel that offers good support while still being comfortable to sleep on. The mattress expanded fully within a few hours and there was barely any odor after opening. For a 5-inch mattress, the quality is better than expected and it fits perfectly on a bunk or daybed. Pros: supportive yet comfortable, lightweight, easy to set up, made in the USA. Cons: on the thinner side, so may not be the best choice for adults wanting a plush feel. ... show more
Reviewed in the United States on January 7, 2026 by Alok Bhatia

THE BEST MATTRESS EVER
Style: 10 inch Size: Queen
It’s only been a couple nights so I’m writing based off that and I will say this bed is AMAZING it’s perfect. Firm yet soft and comfortable. I haven’t had any neck or back pain it’s so worth the money!! It’s a steal! Highly recommend I am so happy!
Reviewed in the United States on April 18, 2026 by Diana Hamilton
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