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Deal.ai › MLILY › King Mattresses
MLILY
MLILY Black Firm King Size Mattress In a Box

MLILY Black Firm King Size Mattress In a Box

4.3(1,390 ratings)

Best price now

$379.99at WalmartChecked Nov 13

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Price facts

  • Last seen at $379.99 at Walmart on Nov 13.

Our take on the MLILY Black Firm King Size Mattress In a Box

The MLILY Ego Black is a 12-inch firm memory foam mattress sold in a box, built on a copper-gel AeroFusion memory foam layer over a Flex Support base foam. The cover is a breathable cooling knit, and the foam is ventilated to move heat. It is aimed at back and stomach sleepers and heavier adults who want a firm, motion-isolating bed, and it carries CertiPUR-US and OEKO-TEX certifications. Against softer all-foam rivals it trades plushness for support; owners generally like the firm feel and the cooling, though some find it too hard and slow to expand after unboxing.

Best forBack and stomach sleepers who want a firm surfaceCouples who want motion isolationHeavier adults needing supportShoppers avoiding fiberglass and wanting certified foam
Pros
  • Firm support that holds up back and stomach sleepers
  • Copper-gel memory foam and ventilated layers help with heat
  • Motion isolation keeps a partner's movement from carrying
  • CertiPUR-US and OEKO-TEX certified foams
  • Removable cover for easier cleaning
Cons
  • Too firm for side sleepers and fans of plush beds
  • All-foam build has no springs, so edge support is modest
  • May need a day or more to fully expand after unboxing
  • Memory foam can sleep warm for some despite the cooling cover

MLILY Black Firm King Size Mattress In a Box prices at every store

  • WalmartNew

    In stockSold by MLILY USAReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $379.99Free shippingChecked Nov 13
    Visit Walmart

What reviewers say

  • 4.3 / 51,390 ratings

Owners rate it well overall, praising the firm support, the motion isolation and the cooling cover. The most common complaints are that it is firmer than expected and that it takes time to reach full thickness.

What people mention
  • FirmnessMixedMany owners like the firm support, but some side sleepers find it too hard.
  • CoolingPraisedThe knit cover and ventilated foam are said to sleep cooler than typical memory foam.
  • Motion isolationPraisedCouples report little movement carrying across the bed.
  • ExpansionCriticisedSome say it takes a day or more to fully expand after unboxing.
  • Edge supportCriticisedSitting or sleeping near the edge feels less supported than on a spring bed.

About the MLILY Black Firm King Size Mattress In a Box

The MLILY Ego Black Firm is a 12-inch king size memory foam mattress that ships in a box. It has a firm feel and a cooling knit fabric cover designed to be breathable.

The top layer is Ventilated Copper-gel AeroFusion Memory Foam, which provides pressure relief and durability. The second layer is Flex Support Base Foam, which conforms to the body for pressure relief. The foam isolates motion, so a partner's movement is less likely to disturb your sleep.

The mattress is made from non-toxic materials and holds CertiPUR-US and OEKO-TEX certifications. It is suitable for adults and kids. The cover is removable for easier maintenance.

Size
King
Thickness
12 in
Color
Black
Feel
Firm
Cover
Cooling knit fabric, removable
Top layer
Ventilated Copper-gel AeroFusion Memory Foam
Second layer
Flex Support Base Foam
Certifications
CertiPUR-US, OEKO-TEX
Suitable for
Adults and kids

Specifications

bed_size
KingSource
mattress_thickness
12 inSource
color
BlackSource

Questions and answers

Is this mattress good for side sleepers?
It is a firm mattress, so most side sleepers will find it too hard on the shoulders and hips. It suits back and stomach sleepers better.
Does it sleep hot?
The copper-gel memory foam, ventilated layers and cooling knit cover are designed to limit heat buildup. Owners mostly report it sleeps cooler than typical memory foam.
How long does it take to expand?
It ships compressed in a box. Most of the expansion happens within hours, but some owners say it takes a day or more to reach full 12-inch thickness.
Does it work on an adjustable base?
It is an all-foam mattress, so it bends and is generally compatible with adjustable bases. Check your base's weight limits.
What certifications does the foam have?
The foams are CertiPUR-US certified and the mattress carries OEKO-TEX certification, meaning low emissions and no harmful substances.
Is the cover removable?
Yes, the cover is removable for cleaning, which helps extend the mattress's life.
Where is the MLILY Black Firm King Size Mattress In a Box cheapest?
At Walmart, for $379.99, as of our latest check.
What do buyers say about the MLILY Black Firm King Size Mattress In a Box?
Rated 4.3 out of 5 from 1,390 ratings.

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