MLILY Twin Mattress in a Box, 8 inch Mattresses for Kids Bed Single Size Daybed Individual Bunk, Memory Foam Medium Firm

MLILY Twin Mattress in a Box, 8 inch Mattresses for Kids Bed Single Size Daybed Individual Bunk, Memory Foam Medium Firm

(4.6)
3103 Reviews

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Specifications

  • Brand: MLILY
  • Size: Twin
  • Product Dimensions: 75"L x 38"W x 8"Th
  • Item Weight: 27.5 Pounds
  • Item Firmness Description: Medium Firm
  • Top Style: Tight Top
  • Cover Material: Graphene
  • Number of Layers: 3
  • Fill Material: Gel Memory Foam, Cotton
  • Special Feature: Pressure Relief

The MLILY Twin Mattress in a Box is an ideal choice for your child's bed, daybed, or bunk setup. This 8-inch mattress balances comfort and support with a medium-firm feel that suits various sleep positions.

Made from high-quality materials, this mattress includes a gel-infused memory foam layer that provides pressure relief while helping to regulate temperature for a cooler night’s sleep. With its thoughtful design and eco-conscious manufacturing standards, the MLILY Twin Mattress stands out as a reliable option for both kids and adults seeking quality sleep.

Features

  • Material Composition: 90% Polyester, 8% Polyamide, and 2% Spandex
  • Quality Control: Manufactured with high standards; over 90% of orders are fulfilled by U.S. factories
  • Medium-Firm Feel: Rated 6-7 on firmness scale; supportive for most body types
  • Gel Infusion: Helps dissipate heat while maintaining body-conforming features
  • CertiPUR-US Certified: Safe foam without ozone depleters and minimal off-gassing
  • Fiberglass-Free FR Inner Cover: Safe flame retardant without harmful chemicals
  • Easy Setup: Compressed into a box; expands within 2 hours of unboxing

Pros

  • Excellent balance between comfort and support with medium-firm feel
  • Cooling gel infusion prevents overheating during sleep
  • Environmentally friendly manufacturing practices
  • Safe and non-toxic materials, suitable for children and families
  • Convenient shipping and setup process

Cons

  • Only available in twin size, which may limit options for larger beds
  • Some users may prefer a softer or firmer mattress based on personal preference
  • Initial off-gassing odor may be present but typically dissipates quickly

Related Product

MLILY Twin Mattress 8 Inch Memory Foam Medium Firm – Compare Price, Ratings, Reviews & Sales Insights

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MLILY Twin Mattress in a Box, 5 inch Mattresses Made in USA for Kids Bed Single Size Daybed Individual Bunk, Memory Foam Medium Firm, $88.6
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Twin Size Mattress 10 Inch,Twin Mattress in a Box for Cool Sleep Gel Memory Foam Hybrid Bed Mattresses Individual Pocket Springs,Soft&Breathable Comfort Support,Medium Firm Feel,Motion Isolation $119.99
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12 Inch Queen Mattress in a Box Queen Size Mattresses with Individual Pocket, Memory Foam Mattress Spring for Motion Isolation, Hybrid Mattress Medium Firm Edge Support $179.99
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Full Mattress, 10 Inch Full Size Mattresses Hybrid Mattress with Memory Foam & Pillow Top - Medium Firm Feel for Motion Isolation, Edge Support, Pressure Relief - Bed in a Box, CertiPUR-US Certified $259.99
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King Size Mattress 14 Inch, Hybrid King Mattress in a Box, Medium Firm Mattresses with Individual Pocket Springs and Soft Memory Foam for Cooler Sleep, Pressure Relief, Edge Support, 365-Night Trial $309.99
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What Customers Say

K
5 / 5

Perfect 5-Inch Mattress for a Larger Double Bed

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.

✔ Verified Purchase
P
5 / 5

Real good quality

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.

✔ Verified Purchase
P
5 / 5

Easy Setup and Very Comfortable for Kids

I bought two of the 6-inch twin mattresses for my kids’ new bunk bed, and they’ve been a great fit so far.Setup was very simple—just took them out of the box, opened the vacuum-sealed bag, and let them expand. Within about two hours, both mattresses were fully shaped and ready to use.The size fits perfectly on the bunk bed, and the medium-firm feel seems just right for kids. My kids have been sleeping on them comfortably and had no complaints at all.The quality feels good for the price, and they seem to hold their shape well after expanding.Overall, these are a great option if you’re setting up a bunk bed or need a simple, comfortable mattress for kids. Very happy with the purchase.

✔ Verified Purchase
A
5 / 5

Very Firm...

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.

✔ Verified Purchase
D
5 / 5

THE BEST MATTRESS EVER

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!

✔ Verified Purchase
R
4 / 5

Okay for what it is

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.

✔ Verified Purchase
X
5 / 5

Most importantly, no smell.

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.

✔ Verified Purchase