---
product_id: 547288843
title: "FDW 5 Inch Gel Memory Foam Mattress Medium-Firm Mattress for Pressure Relief & Cooler Sleep Mattress for Kid Adults CertiPUR-US Certified Mattress in a Box,Twin"
brand: "fdw"
price: "¥86822"
currency: JPY
in_stock: true
category: "Fdw"
url: https://www.desertcart.jp/products/547288843-fdw-5-inch-gel-memory-foam-mattress-medium-firm-mattress
store_origin: JP
region: Japan
---

# Compressed mattress-in-a-box, expands in 72h Gel memory foam for cooler sleep 5-inch dual-layer design FDW 5 Inch Gel Memory Foam Mattress Medium-Firm Mattress for Pressure Relief & Cooler Sleep Mattress for Kid Adults CertiPUR-US Certified Mattress in a Box,Twin

**Brand:** fdw
**Price:** ¥86822
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your sleep game—comfort that’s cooler, smarter, and ready when you are!

## Quick Answers

- **What is this?** FDW 5 Inch Gel Memory Foam Mattress Medium-Firm Mattress for Pressure Relief & Cooler Sleep Mattress for Kid Adults CertiPUR-US Certified Mattress in a Box,Twin by fdw
- **How much does it cost?** ¥86822 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/547288843-fdw-5-inch-gel-memory-foam-mattress-medium-firm-mattress)

## Best For

- fdw enthusiasts

## Why This Product

- Trusted fdw brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Durable:** Lightweight 8.17 kg twin mattress with a robust 1000 lbs weight capacity, perfect for kids and adults alike.
- • **Stay Cool All Night Long:** Advanced gel-infused foam promotes airflow and temperature regulation, eliminating night sweats and discomfort.
- • **Certified Safe & Sustainable:** CertiPUR-US certified foam ensures a healthier, chemical-free sleep environment you can trust.
- • **Effortless Setup, Instant Upgrade:** Delivered compressed in a box, expands fully within 72 hours—transform your sleep space without hassle.
- • **Adaptive Comfort for Every Sleeper:** Medium-firm gel memory foam contours perfectly to your body, supporting all sleep positions with pressure relief.

## Overview

The FDW 5 Inch Gel Memory Foam Mattress combines a 1-inch gel-infused memory foam layer with a 4-inch high-density support base to deliver medium-firm comfort and pressure relief. Designed for all sleeping positions, it promotes cooler sleep through enhanced airflow and is CertiPUR-US certified for safety. Shipped compressed in a box, it expands to full size within 72 hours, making setup effortless. Ideal for kids and adults, this twin mattress balances softness and support with durable materials and a lightweight design.

## Description

Upgrade your sleep experience with FDW’s premium mattress, thoughtfully engineered to deliver lasting comfort, optimal support, and user-friendly convenience. Featuring a dual-layer construction that combines adaptive memory foam and a durable high-density support base, this mattress conforms to your body’s natural curves while providing targeted pressure relief and proper spinal alignment. Ideal for all sleeping positions—back, side, or stomach—it helps reduce tossing and turning by cushioning key pressure points. The breathable memory foam enhances airflow and temperature regulation, ensuring you stay cool and comfortable throughout the night. For easy care, the soft, skin-friendly removable cover is machine washable, supporting long-term freshness. Shipped conveniently in a compact box, the mattress requires 48 to 72 hours to fully expand to its original shape and size (expansion time may vary with room temperature). Tip: If expansion seems slow after 24 hours, you may gently warm the mattress surface with a hairdryer on a warm—not hot—setting to help the foam become more flexible; then allow the full expansion period to complete. CertiPUR-US certified and made without harmful chemicals, every FDW mattress is designed to provide a healthier, safer sleep environment you can trust night after night.

## Features

- Easy setup - just move the box to the room you want to use, open the box, open the mattress, and watch it expand in front of your eyes. The mattress will be ready in 72 hours!
- Gel Memory foam - Our mattress is a gel memory foam boxed mattress designed for various sleepers. It helps you sleep cool and conforms to every curve. Get support where you need it, and comfort where you want it.
- Perfect support in any position - whether you're a side sleeper, a back sleeper, a stomach sleeper, or just tossing and turning, our mattresses provide the best hardness, coolness and comfort.
- High quality materials: our memory foam mattress, combined with professional knowledge and the best materials, helps to provide advanced sleep technology. Gel memory foam provides continuous airflow to ensure cool sleep at night.
- Layered: This 5-inch mattress provides two layers of full foam system 4 "foundation support foam, plus 1" gel memory foam. The foam mattress is a perfect combination of softness and firmness, suitable for all sleeping positions. This medium hardness mattress made of gel memory foam helps support your weight, maintain your body shape, and get the best rest.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C1BK89M3 |
| Additional Features | Pressure Relief |
| Age Range Description | Kid |
| Best Sellers Rank | #47,477 in Home ( See Top 100 in Home ) #303 in Mattresses |
| Brand Name | FDW |
| Color | White |
| Construction Type | Gel Memory Foam |
| Cover Material | Polyester Blend |
| Customer Reviews | 4.4 4.4 out of 5 stars (5,750) |
| Fill Material | Gel Memory Foam |
| Included Components | 1 mattress |
| Is Customizable? | No |
| Is Electric | No |
| Is Extendable | No |
| Is Foldable | No |
| Item Depth | 5 inches |
| Item Dimensions | 27.9 x 27.9 x 55.9 centimeters |
| Item Dimensions L x W x Thickness | 190.5L x 99.1W x 12.7Th centimeters |
| Item Firmness Description | Medium |
| Item Thickness | 5 Inches |
| Item Type Name | Mattress for Kid Adults CertiPUR-US Certified Mattress in a Box,Twin |
| Item Weight | 9.07 kg |
| Manufacturer | FDW |
| Manufacturer Part Number | MEM-5T-A1Z-White |
| Material Type | Gel Foam |
| Mattress Comfort Layer Material | Gel Memory Foam |
| Mattress Type | Standard Mattress |
| Model Name | Memory Foam Mattress Medium-Firm Mattress for Pressure Relief & Cooler Sleep |
| Model Number | DM505-T-GM |
| Number of Items | 1 |
| Number of Layers | 2 |
| Number of Packs | 1 |
| Portable | No |
| Product Benefits | Pressure Relief |
| Product Care Instructions | Hand Wash Only |
| Set Name | Twin |
| Size | Twin |
| Style Name | 5 IN |
| UPC | 195030080990 |
| Unit Count | 1.0 Count |
| Weight Capacity Maximum | 1000 Pounds |
| top-style | Gel Top |

## Product Details

- **Brand:** FDW
- **Cover material:** Polyester Blend
- **Fill material:** Gel Memory Foam
- **Item firmness description:** Medium
- **Item weight:** 9.07 kg
- **Number of layers:** 2
- **Product dimensions:** 190.5L x 99.1W x 12.7Th centimeters
- **Size:** Twin
- **Top style:** Gel Top
- **Weight limit:** 1000 Pounds

## Images

![FDW 5 Inch Gel Memory Foam Mattress Medium-Firm Mattress for Pressure Relief & Cooler Sleep Mattress for Kid Adults CertiPUR-US Certified Mattress in a Box,Twin - Image 1](https://m.media-amazon.com/images/I/714fEFHihgL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Frequently Bought Together

- FDW | Twin Mattress | Gel Memory Foam | 5 Inch | Medium Firm Feel | White | Bed in a Box, CertiPUR-US Certified | Pressure Relief, Cooling Ventilated Foam | Washable Removable Cover
- Utopia Bedding Waterproof Mattress Protector Twin Size, Premium Terry Mattress Cover 200 GSM, Breathable, Fitted Style with Stretchable Pockets (White)
- Twin Floor Bed with Slats and Center Support Bar, Wood Montessori Floor Bed with Fence and Door, Kids Montessori Bed Twin Size, Twin Size Montessori Floor Bed for Kids, Girls, Boys(Twin White)

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**Shop now:** [https://www.desertcart.jp/products/547288843-fdw-5-inch-gel-memory-foam-mattress-medium-firm-mattress](https://www.desertcart.jp/products/547288843-fdw-5-inch-gel-memory-foam-mattress-medium-firm-mattress)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-13*