FDW 5 Inch Gel Memory Foam Mattress Twin
- Size: Twin
- Item Thickness: 5 inches
- Item Depth: 5 inches
- Item Firmness Description: Medium
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact 5 inch twin foam mattress with a washable cover, reasonable for a bunk bed, daybed, or guest room rather than as a plush primary mattress.
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ASIN: B0C1BK89M3Model: MEM-5T-A1ZCategory: Mattresses
Sizes Available
Styles Available
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Overview
This FDW twin mattress packs a 1 inch gel memory foam layer over a 4 inch high density foam base, for 5 inches total, and ships compressed in a box that needs about 72 hours to fully expand. It fits a kids room, guest room, daybed, or bunk where a slim profile matters more than a thick pillow top.
A 5 inch total height is thin by mattress standards, so this reads as a budget or secondary mattress rather than a primary bed replacement for someone chasing deep cushioning. CertiPUR-US certification is the one detail here that speaks to material safety rather than comfort, meaning the foam was tested for things like heavy metals and ozone depleters.
- 1 inch gel memory foam layer over a 4 inch high density base
- Foam built for back, side, and stomach sleeping positions
- Ships compressed in a box, expanding within about 72 hours
- CertiPUR-US certified foam construction
Who it's for
Fits a twin bed frame, daybed, trundle, or bunk where the buyer wants a foam upgrade over a thin pad without paying for a thick pillow top mattress. Not a fit for someone who specifically wants a plush, deep sinking feel, since 5 inches total limits how much give the top layer can offer.
Pros and cons
- Removable cover unzips for machine washing
- CertiPUR-US certified foam
- Slim 5 inch profile fits bunk beds and daybeds where clearance is tight
- 5 inches total is thin for a primary mattress
- Up to 72 hours needed to fully expand before use
- Only one firmness option, medium firm
Performance notes
The gel infused top layer sits directly over the denser support core, so the gel is mainly there to pull heat away from the sleeper rather than add softness, while the 4 inch base underneath does the structural work of holding shape and supporting weight. Because the mattress ships compressed and rolled, it needs roughly three days after unboxing to reach its full 5 inch thickness, and sleeping on it before then will likely feel firmer than intended.
Specifications
| Brand | FDW |
|---|---|
| Model | MEM-5T-A1Z |
| Dimensions & fit | |
| Size | Twin |
| Item Depth | 5 incheslower than 96% of 24 mattresses |
| Weight Capacity Maximum | 1000 poundshigher than 88% of 25 mattresses |
| Item Weight | 18 poundslower than 96% of 27 mattresses |
| Item Dimensions L x W x Thickness | 75 × 39 × 5 inches |
| Item Dimensions | 11 × 11 × 22 inches |
| Capacity & performance | |
| Age Range Description | Kid |
| Construction & materials | |
| Construction Type | Gel Foam |
| Mattress Comfort Layer Material | Gel Memory Foam |
| Fill Material | Gel Memory Foam |
| Material Type | Gel Foam |
| Cover Material | Cotton |
| Color | White |
| Included components | |
| Number of Packs | 1 |
| Unit Count | 1 |
| Included Components | 1 Mattress |
| Other details | |
| Item Thickness | 5 incheslower than 91% of 35 mattresses |
| Item Firmness Description | Medium |
| topstyle | Smooth Top |
| Number of Layers | 2 |
| Mattress Type | Standard Mattress |
| Number of Items | 1 |
| Style Name | 5 IN |
| Product Care Instructions | Hand Wash Only |
| Additional Features | Pressure Relief |
| Set Name | 5 IN |
| Product Benefits | Pressure Relief |
Closest rivals on specs
Novilla 6 Inch Gel Memory Foam Mattress Twin- Item Thickness 5 vs 6 inches (-17%)
- Item Weight 18 vs 21.61 pounds (-17%)
- Item Depth 5 vs 6 inches (-17%)
CYMULA Memory Foam Roll Up Camping Mattress- Item Thickness 5 vs 3 inches (+67%)
- Item Weight 18 vs 7.5 pounds (+140%)
GAESTE 8 Inch Cooling Gel Memory Foam Mattress Full- Item Thickness 5 vs 8 inches (-37%)
- Item Weight 18 vs 38 pounds (-53%)
- Item Depth 5 vs 8 inches (-37%)
Frequently asked questions
What is the total thickness of the FDW Twin Mattress, model MEM-5T-A1Z?
It is 5 inches total, a 1 inch gel memory foam layer over a 4 inch high density support foam base.
How long does the FDW twin mattress take to expand after unboxing?
The listing states it fully expands within about 72 hours of unrolling.
Is the FDW twin mattress cover washable?
Yes, the cover is removable and unzips for machine washing.