---
product_id: 185685881
title: "4.5 Inch Memory Foam Replacement Mattress with Breathable, Waterproof and Washable Cover for Full Size Sleeper Sofa and Couch Beds (Sofa Not Included) - Full"
brand: "milliard"
price: "¥208985"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/185685881-4-5-inch-memory-foam-replacement-mattress-with-breathable-waterproof
store_origin: JP
region: Japan
---

# waterproof & washable cover breathable, ventilated cover 4.5-inch dual-layer foam 4.5 Inch Memory Foam Replacement Mattress with Breathable, Waterproof and Washable Cover for Full Size Sleeper Sofa and Couch Beds (Sofa Not Included) - Full

**Brand:** milliard
**Price:** ¥208985
**Availability:** ✅ In Stock

## Summary

> 🛋️ Upgrade your couch bed game with comfort that folds and breathes!

## Quick Answers

- **What is this?** 4.5 Inch Memory Foam Replacement Mattress with Breathable, Waterproof and Washable Cover for Full Size Sleeper Sofa and Couch Beds (Sofa Not Included) - Full by milliard
- **How much does it cost?** ¥208985 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/185685881-4-5-inch-memory-foam-replacement-mattress-with-breathable-waterproof)

## Best For

- milliard enthusiasts

## Why This Product

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

## Key Features

- • **Fits Like a Glove:** Designed to seamlessly fit most full-size sleeper sofas, campers, and RV beds
- • **Mess-Proof Luxury:** Waterproof, soft cover protects your mattress without sacrificing comfort
- • **Contour Meets Support:** 3in firm base + 1.5in plush memory foam for perfect ergonomic comfort
- • **Effortless Maintenance:** Removable, machine-washable cover keeps your sleep space pristine
- • **Stay Cool, Sleep Better:** Ventilated jacquard cover dissipates heat for all-night freshness

## Overview

The Milliard 4.5 Inch Memory Foam Replacement Mattress features a dual-layer design combining a firm polyurethane base with a plush memory foam top for balanced support and contouring. Its breathable, waterproof jacquard cover enhances airflow and protects against spills, while being fully washable for easy care. Perfectly sized for full sleeper sofas, campers, and RVs, this mattress transforms any fold-out bed into a luxurious, pressure-relieving sleep surface.

## Description

Buy Milliard 4.5 Inch Memory Foam Replacement Mattress with Breathable, Waterproof and Washable Cover for Full Size Sleeper Sofa and Couch Beds (Sofa Not Included) - Full: Mattresses - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Our bi-layered mattress combines a 3in firm polyurethane foam base with a 1.5in soft memory foam topping that slowly conforms to your body contours and still provides adequate support that’s compatible with most folding couch bed frames and is also used for boat, camper & RV.
- Rough night? Your mattress cover might be responsible. The jacquard waterproof soft cover included on our mattress is so soft and comfortable that you might skip the fitted sheets. It’s also ventilated to allow body heat to dissipate. Sleep soundly, not stifling.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08288L2BB |
| Additional Features | Removable Cover, Washable |
| Age Range Description | Adult |
| Best Sellers Rank | #779,453 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,150 in Mattresses |
| Brand | Milliard |
| Brand Name | Milliard |
| Color | White |
| Construction Type | Memory Foam |
| Cover Material | Polyester |
| Customer Reviews | 4.5 out of 5 stars 5,131 Reviews |
| Fill Material | Memory Foam |
| Is Customizable? | No |
| Is Foldable | No |
| Item Depth | 4.5 inches |
| Item Dimensions | 73 x 52 x 4.5 inches |
| Item Dimensions L x W x Thickness | 28.74"L x 20.47"W x 1.77"Th |
| Item Firmness Description | Plush |
| Item Thickness | 4.5 Inches |
| Manufacturer | Milliard |
| Material Type | Memory Foam, Polyurethane |
| Mattress Coil Type | Continuous Coil |
| Mattress Comfort Layer Material | Memory foam |
| Model Name | Memory |
| Model Number | MIL-SFMT45 |
| Number of Layers | 2 |
| Portable | No |
| Product Benefits | Pressure Relief, Body Contouring, Temperature Regulation, Easy to Clean |
| Product Care Instructions | Machine Wash |
| Product Dimensions | 28.74"L x 20.47"W x 1.77"Th |
| Shape | Rectangular |
| Size | Full |
| Style Name | Modern |
| Top Style | Tight Top |
| UPC | 840985117900 |
| Unit Count | 1.0 Count |
| top-style | Tight Top |

## Product Details

- **Brand:** Milliard
- **Color:** White
- **Cover Material:** Polyester
- **Fill Material:** Memory Foam
- **Item Firmness Description:** Plush
- **Number of Layers:** 2
- **Product Dimensions:** 73"L x 52"W x 4.5"Th
- **Size:** Full
- **Special Feature:** Durable, Pressure Relief, Removable Cover
- **Top Style:** Tight Top

## Images

![4.5 Inch Memory Foam Replacement Mattress with Breathable, Waterproof and Washable Cover for Full Size Sleeper Sofa and Couch Beds (Sofa Not Included) - Full - Image 1](https://m.media-amazon.com/images/I/51TRFwgINaL.jpg)

## Questions & Answers

**Q: After opening the sleeper sofa, how long does it take for the queen size mattress to fully expand and be ready to sleep on?**
A: It's packed in a vacuum sealed bag to make it smaller for easier shipping.  As soon as you cut the bag and take it out, it expanded in maybe 30 seconds. Be ready!

**Q: what are the exact dimensions width by length ?**
A: 72" long by 58" wide by 4" tall. The dimensions are shown when scrolling through the pictures.

**Q: donde consigo el sofa**
A: Donde consigo el sofá

**Q: What is the weight limit?**
A: I don't know the stated weight limit if there is one but it comfortably slept a 200 lb man with no hard spots from the frame.

## Frequently Bought Together

- Milliard 4.5 Inch Memory Foam Replacement Mattress with Breathable, Waterproof and Washable Cover for Full Size Sleeper Sofa and Couch Beds (Sofa Not Included) - Full
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**Shop now:** [https://www.desertcart.jp/products/185685881-4-5-inch-memory-foam-replacement-mattress-with-breathable-waterproof](https://www.desertcart.jp/products/185685881-4-5-inch-memory-foam-replacement-mattress-with-breathable-waterproof)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-14*