---
product_id: 646277859
title: "4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds -Twin Size CertiPUR-US Certified (Sofa Not Included)"
brand: "rhyme source"
price: "A$657"
currency: AUD
in_stock: true
category: "Rhyme Source"
url: https://www.desertcart.com.au/products/646277859-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper
store_origin: AU
region: Australia
---

# 2-inch cooling gel memory foam washable polyester cover 4.5-inch total mattress thickness 4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds -Twin Size CertiPUR-US Certified (Sofa Not Included)

**Brand:** rhyme source
**Price:** A$657
**Availability:** ✅ In Stock

## Summary

> 🛋️ Upgrade your couch game with cool, comfy sleep vibes!

## Quick Answers

- **What is this?** 4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds -Twin Size CertiPUR-US Certified (Sofa Not Included) by rhyme source
- **How much does it cost?** A$657 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/646277859-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper)

## Best For

- rhyme source enthusiasts

## Why This Product

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

## Key Features

- • **Support That Lasts:** 2.5-inch high-density foam base ensures medium firmness and durability
- • **Tailored for Your Sofa:** Perfect twin size replacement for sleeper sofas and couch beds
- • **Certified Quality Sleep:** CertiPUR-US certified foam guarantees safe, eco-friendly rest
- • **Cool Comfort, All Night:** 2-inch gel memory foam layer keeps you refreshed and pressure-free
- • **Easy Care, Always Fresh:** Removable, washable polyester cover for hassle-free maintenance

## Overview

This 4.5-inch twin-size mattress replacement features a 2-inch cooling gel memory foam layer atop a 2.5-inch high-density foam base, delivering medium firmness and pressure relief. Designed specifically for sleeper sofas and couch beds, it includes a washable polyester cover and is CertiPUR-US certified for safe, eco-conscious comfort.

## Description

2-inch Gel Memory Foamand a 2.5-inch foam support base

## Features

- Brand: Rhyme source
- Age range description: Adult
- Fill material: foam

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLV7SW3N |
| Additional Features | Washable Material |
| Age Range Description | Adult |
| Best Sellers Rank | #191,400 in Home ( See Top 100 in Home ) #1,292 in Mattresses |
| Brand Name | Rhyme source |
| Color | White |
| Construction Type | Foam Construction |
| Cover Material | Polyester |
| Customer Reviews | 4.2 4.2 out of 5 stars (498) |
| Fill Material | Gel Memory Foam, High Density Foam, Memory Foam, foam |
| Is Customizable? | No |
| Is Foldable | Yes |
| Item Depth | 4.5 inches |
| Item Dimensions | 190.5 x 96.5 x 11.4 centimeters |
| Item Dimensions L x W x Thickness | 190.5L x 96.5W x 11.4Th centimeters |
| Item Firmness Description | Medium |
| Item Weight | 3.86 kg |
| Manufacturer | Jinying10 |
| Material Type | Memory Foam Gel Foam |
| Mattress Comfort Layer Material | Gel Memory Foam |
| Model Name | 4.5 Inch Cool Gel Memory Foam Replacement Mattress |
| Model Number | GSFB-4.5-GMF-RP |
| Number of Layers | 2 |
| Portable | No |
| Product Benefits | Pressure Relief |
| Product Care Instructions | Hand Wash Only |
| Size | Twin |
| Style Name | Gel Top |
| top-style | Gel Top |

## Product Details

- **Brand:** Rhyme source
- **Cover material:** Polyester
- **Fill material:** Gel Memory Foam, High Density Foam, Memory Foam, foam
- **Item firmness description:** Medium
- **Item weight:** 8.5 Pounds
- **Number of layers:** 2
- **Product dimensions:** 190.5L x 96.5W x 11.4Th centimeters
- **Size:** Twin
- **Special features:** Washable Material
- **Top style:** Gel Top

## Images

![4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds -Twin Size CertiPUR-US Certified (Sofa Not Included) - Image 1](https://m.media-amazon.com/images/I/61hcRa2Yt-L.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.com.au/products/646277859-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper](https://www.desertcart.com.au/products/646277859-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-06-28*