---
product_id: 684487087
title: "4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included)"
brand: "rhyme source"
price: "$3170"
currency: NZD
in_stock: true
reviews_count: 5
category: "Rhyme Source"
url: https://www.desertcart.nz/products/684487087-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper
store_origin: NZ
region: New Zealand
---

# 73"L x 52"W x 4.5"TH full size Gel layer cools surface temperature CertiPUR-US & OEKO-TEX certified durability 4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included)

**Brand:** rhyme source
**Price:** $3170
**Availability:** ✅ In Stock

## Summary

> 🛋️ Upgrade your couch game with cool, contouring comfort!

## Quick Answers

- **What is this?** 4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included) by rhyme source
- **How much does it cost?** $3170 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/684487087-4-5-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

- • **Stay Cool All Night Long:** Innovative cold gel memory foam dissipates heat, ensuring a refreshing, sweat-free sleep experience.
- • **Versatile & Travel-Ready:** Vacuum-packed for easy transport—ideal for family visits, campers, boats, or even floor use.
- • **Certified Safe & Eco-Friendly:** OEKO-TEX and CertiPUR-US certifications guarantee non-toxic materials and sustainable quality you can trust.
- • **Long-Lasting Comfort & Support:** High-density foam base combined with gel memory foam offers resilient pressure relief that adapts to your body shape.
- • **Perfect Fit for Your Sleeper Sofa:** Full-size 4.5-inch thickness designed to seamlessly upgrade any pull-out couch or sleeper bed.

## Overview

This 4.5-inch full-size mattress replacement features a 2-inch gel memory foam layer atop a 2.5-inch firm polyurethane base, delivering adaptive pressure relief and superior cooling. Vacuum-packed for easy transport, it’s CertiPUR-US and OEKO-TEX certified for safety and durability, making it the perfect versatile upgrade for sleeper sofas, RVs, and more.

## Description

Product description 2-inch Gel Memory Foamand a 2.5-inch foam support base Safety Warning Keep plastic packaging away from children to avoid suffocation risk; Mattress may contain materials that cause allergic reactions in some individuals

Review: Colchón firme y resistente. Ptotege bien de la estructura metálica del sofá.
Review: Matelas très confortable pour un divan-lit. Par contre il est préférable de mettre un sous matelas rigide pliable.

## Features

- Full size pull-out mattress measures 73"L x 52"W x 4.5"TH. The mattress is vacuum packed for easy transportation to family and friends. Please allow 24 to 72 hours for the mattress to return to its full shape, ensuring you enjoy quality sleep
- Cold Gel Memory foam mattresses offer superior pressure relief and support by conforming to the body's pressure points.which involves incorporating a gel layer in the mattress to dissipate and absorb body heat. This effectively lowers the surface temperature of the mattress, delivering a cooler sleeping experience.
- Gel Memory foam mattresses are made of high-density memory foam, providing exceptional durability and longevity. has passed the OEKO-TEX certification CertiPUR-US certification.They retain their shape and resilience over time, delivering consistent support and comfort, thus extending the lifespan of the mattress
- Our memory mattresses are not only suitable for folding sofa beds, but also compatible with other furniture or boats, campers&RVs. They can also be directly placed on the floor for use, suitable for various places you want
- Memory Foam Sleeper Sofa bed Mattress combines a 2.5in firm polyurethane foam base with a 2in Gel Memory foam，memory foam mattresses are highly temperature-sensitive and adjust their firmness based on body heat. They become softer and more contouring to the body's curves, providing additional support and comfort

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLV712F3 |
| Best Sellers Rank | 2,309,007 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 2,775 in Mattresses (Home & Kitchen) |
| Brand | Rhyme source |
| Colour | White |
| Customer Reviews | 4.2 4.2 out of 5 stars (446) |
| Date First Available | 2 Dec. 2023 |
| Item Weight | 11.2 kg |
| Material | Foam |
| Product Dimensions | 185.42 x 132.08 x 11.43 cm; 11.2 kg |
| Special Features | Washable Material |

## Product Details

- **Brand:** Rhyme source
- **Colour:** White
- **Cover material:** Polyester
- **Fill material:** Gel Memory Foam, Memory Foam, foam
- **Item firmness description:** Medium
- **Number of layers:** 2
- **Product dimensions:** 185.4L x 132.1W x 11.4Th centimetres
- **Size:** Double
- **Special feature:** Washable Material
- **Top style:** Gel Top

## Images

![4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included) - Image 1](https://m.media-amazon.com/images/I/31Z-uPvFGdL.jpg)
![4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included) - Image 2](https://m.media-amazon.com/images/I/4138XW973yL.jpg)
![4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included) - Image 3](https://m.media-amazon.com/images/I/41KdNRJmvqL.jpg)
![4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included) - Image 4](https://m.media-amazon.com/images/I/41q6X0xe2OL.jpg)
![4.5 Inch Cold Gel Memory Foam Mattress Replacement for Sleeper Sofa and Couch Beds - Full Size CertiPUR-US Certified (Sofa Not Included) - Image 5](https://m.media-amazon.com/images/I/41uTYvhh0LL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***A on 22 September 2025*

Colchón firme y resistente. Ptotege bien de la estructura metálica del sofá.

### ⭐⭐⭐⭐⭐ Review
*by M***L on 12 August 2025*

Matelas très confortable pour un divan-lit. Par contre il est préférable de mettre un sous matelas rigide pliable.

### ⭐⭐⭐⭐⭐ Review
*by J***H on 14 January 2026*

The mattress arrived quickly and fit perfectly. Once it inflated to full thickness the mattress is very comfortable. Our folding sofa bed folded up with no problems.

## Frequently Bought Together

- Rhyme Source 4.5 Inch Cold Gel Memory Foam Sofa Bed Mattress Replacement, Full Size, Blue, Medium Firmness
- Meliusly Heavy Duty Sleeper Sofa Support Board (48x48 - Full Size) Reinforced Wood Sofa Bed Support, Pull Out Couch Mattress Board, Sleeper Bar Shield, SleeperSaver
- Sleep Philosophy Waterproof Sofa Bed Mattress Protector, Holden Sofa Bed Full Mattress Pad, 3M Scotchgard, Microfiber Mattress Topper Fitted Elastic Pocket Fits Up to 8 Inch, Full 54x72, White

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**Shop now:** [https://www.desertcart.nz/products/684487087-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper](https://www.desertcart.nz/products/684487087-4-5-inch-cold-gel-memory-foam-mattress-replacement-sleeper)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-22*