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FDW 8" Gel Memory Foam Medium Firm King Mattress in a Box

FDW 8" Gel Memory Foam Medium Firm King Mattress in a Box

4.1· 2,000 ratings

Last price we saw

$199.99last seen Oct 29

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Our take on the FDW 8" Gel Memory Foam Medium Firm King Mattress in a Box

The FDW 8" Gel Memory Foam King is a budget mattress-in-a-box with a 2-inch gel-infused comfort layer over 6 inches of high-density base foam, sold as mattress only. It is medium firm, 8 inches tall, and CertiPUR-US certified, with a washable four-way stretch cover. It suits guest rooms, kids' rooms and tight budgets more than daily long-term use. Its latest best price is $249 at NFM as of November 3.

Best for
Guest rooms and spare bedrooms
Kids' rooms and first apartments
Shoppers on a tight budget
Back and stomach sleepers who want a firmer feel
Pros
  • Low price for a king-size foam mattress
  • Gel-infused top layer helps limit heat buildup
  • CertiPUR-US certified foam
  • Washable, hypoallergenic stretch cover
  • Works on adjustable bases
  • Expands within about 6 hours of unboxing
Cons
  • Only 8 inches tall, so less cushioning than thicker foam beds
  • 6-inch base is firm; side sleepers may feel pressure on hips and shoulders
  • No edge support reinforcement
  • Durability is a question at this price; expect a shorter lifespan
  • Mattress only, no foundation or box spring included

FDW 8" Gel Memory Foam Medium Firm King Mattress in a Box price history

Lowest price we've seen: $199.99 on Oct 29. Tracked across 1 store since Oct 29.

What reviewers say

With 4.1 out of 5 from about 2,000 ratings, owners mostly call it good value for the money and easy to set up. Complaints center on firmness and how long it lasts.

Pros
  • Good value for a king-size foam mattress
  • Simple setup; expands quickly after unboxing
  • Firmer feel that suits back sleepers
  • Sleeps cooler than expected for foam
Cons
  • Feels firmer than the medium label suggests
  • Thin profile; some find it too hard
  • Reports of sagging or softening over time
  • Weak edges that compress when sitting

From NFM

  • Gel-infused memory foam pulls heat away so the surface stays cool
  • 2-inch contouring foam cushions hips and shoulders
  • 6-inch high-density base foam keeps spine aligned
  • CertiPUR-US certified, no harmful chemicals
  • Washable hypoallergenic four-way stretch cover
  • Boxed shipping; expands within 6 hours
Sizes
Twin, Full, Queen, King
Materials
Gel-infused memory foam; 2-inch contour layer over 6-inch high-density base foam; hypoallergenic four-way stretch cover
Fit
Medium firm comfort level; 8 inches high; tight top; works on a platform bed, box spring, or adjustable frame without added support
Care
Unzip the hypoallergenic cover, wash it, and zip it back on; let the mattress air out for 72 hours to clear the factory smell
In the box
Mattress

Specifications

Adjustable Base Compatible
Yes
Base Type
Mattress Only
Comfort Level
Medium
Mattress Construction
Memory Foam
Mattress Height
8
Mattress Size
King
Mattress Tailoring
Tight Top

Questions and answers

Is the FDW 8-inch king mattress worth it?
For a guest room or a low-cost replacement, yes. At $249 at NFM as of November 3, it undercuts most king foam mattresses. Don't expect the longevity or edge support of a $1,000 bed.
Is it good for side sleepers?
It is a gamble. The 2-inch comfort layer is thin and the base is firm, so lighter side sleepers often feel pressure at the hips and shoulders. Back and stomach sleepers usually do better on it.
Does it work on an adjustable base?
Yes. FDW lists it as adjustable base compatible, and an 8-inch foam mattress bends easily. You still need a base or frame; the mattress ships alone.
How long until I can sleep on it?
FDW says it expands within 6 hours of unboxing. Give it a full 24 hours to reach full height and let any foam smell fade.
What comes in the box?
Just the mattress, compressed and rolled. No foundation, box spring or pillows are included.
When is it cheapest?
Boxed foam mattresses like this one usually drop during Memorial Day, Labor Day and Black Friday sales. Check the price history before buying outside those windows.
What do buyers say about the FDW 8" Gel Memory Foam Medium Firm King Mattress in a Box?
Rated 4.1 out of 5 from 2,000 ratings.