---
product_id: 115910363
title: "naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh"
brand: "naturalex"
price: "¥604563"
currency: JPY
in_stock: true
reviews_count: 13
category: "Naturalex"
url: https://www.desertcart.jp/products/115910363-naturalex-4ft6-double-mattress-memory-foam-11-8-inch-deep
store_origin: JP
region: Japan
---

# Fire retardant certified Airtex3D breathable fabric 30cm deep hybrid layers naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh

**Brand:** naturalex
**Price:** ¥604563
**Availability:** ✅ In Stock

## Summary

> 🛌 Sleep smart, wake unstoppable — the mattress your body deserves!

## Quick Answers

- **What is this?** naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh by naturalex
- **How much does it cost?** ¥604563 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/115910363-naturalex-4ft6-double-mattress-memory-foam-11-8-inch-deep)

## Best For

- naturalex enthusiasts

## Why This Product

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

## Key Features

- • **Risk-Free Rest:** 30-day trial plus 5-year warranty backed by hypoallergenic, rigorously tested materials.
- • **Cool & Fresh Sleep:** Innovative Air Fresh system and Airtex3D fabric keep you cool and moisture-free all night.
- • **Lightweight & Firm:** Premium design offers extra firm support without the heavy bulk—easy to handle and move.
- • **Deep Hybrid Comfort:** Experience 30cm of multi-zone memory foam bliss tailored for side and back sleepers.
- • **Pressure-Relieving Support:** High-density viscoelastic foam reduces joint pressure and evenly distributes weight.

## Overview

The naturalex 4ft6 Double Mattress Extrafresh combines 30cm of extra firm, multi-zone memory foam with a breathable Airtex3D cover and fire retardant certification. Designed for side and back sleepers, it offers pressure relief and superior spinal support while maintaining a lightweight profile. Certified hypoallergenic and backed by a 30-day trial and 5-year warranty, it’s engineered for premium comfort and durability.

## Description

naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh : desertcart.co.uk: Home & Kitchen

Review: Memory foam Mattress - Absolutely love this mattress, comfortable, and good quality, great value, price very good
Review: 100% recommend this make of mattress for lightness but firm - I’ve had one of these naturalex mattresses before but in a king size. I loved it. It’s So light but still with the firmness. So when I switched to single beds I bought foam mattresses thinking they were the same! How wrong was I. They were ok but at £150 each, not great and way too heavy for me. So after 2 months I search for naturelex again and found this. I was worried by the price thinking it wasn’t going to be as good as the one I had before in king size. I was so wrong. This is amazing for the weight, making it easier to change and the firmness of the mattress. I will be ordering another to replace the other one I bought too. I guarantee spending £70 on this one will be so much better than spending £150 on a heavy foam mattress. These are amazing. Especially if you’re like me where you struggle with the weight of a mattress but like the firmness.

## Features

- WHO DOES IT SUIT? With up to 30cm layers of padded hybrid bliss, the Extrafresh memory foam mattress suits those who are seeking a premium quality, extra deep, mattress. Thanks to its multi-zone support system with zero motion transfer, it suits side and back sleepers and those who toss and turn.
- DOUBLE BED MATTRESS – Perfect for adults and children, side and back sleepers. Fits all UK standard bed bases (4ft6 x 6ft3, 135cm x 190cm). High-quality core for ideal adaptability. A perfect blend of firmness and flexibility, this design provides superior comfort. With a thickness of up to 30 cm, it provides excellent support for the spine and offers you the well-being and comfort your body needs.
- NO MORE OVERHEATING: Ideal for people who are sensitive to heat, the ultra-breathable Airtex3D fabric releases heat while you sleep. The innovative Air Fresh system circulates air between the different layers of the mattress, keeping it moisture free and more hygienic.
- PRESSURE-FREE SLEEP: Thanks to the viscoelastic Bio Memory high density memory foam, it relieves and prevents joint pressure, reduces aching bones, and provides optimal distribution of weight across the mattress. It instantly soothes pressure on your shoulders and hips, so it delivers a more restful night’s sleep.
- LOVE IT OR SHOVE IT GUARANTEE: For your peace of mind, all Naturalex products are subject to 5 quality processes and rigorous testing for appropriate home use. All materials are certified hypoallergenic by OekoTex. However, we give you a 30 day trial to try it out. That, along with a generous 5 Year Warranty from Naturalex, will allow you to rest knowing you are in safe hands.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N884KPT |
| Best Sellers Rank | 74,865 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 196 in Mattresses (Home & Kitchen) |
| Brand | naturalex |
| Colour | Brown |
| Customer Reviews | 4.0 4.0 out of 5 stars (2,376) |
| Date First Available | 24 Jan. 2019 |
| Item Weight | 17.1 kg |
| Material | Memory Foam |
| Model Number | EXTRAFRESH |
| Product Dimensions | 135 x 190 x 30 cm; 17.09 kg |
| Special Features | 7 Comfort Zones, Back Support, Breathable, Fire Retardant, Hypoallergenic |

## Product Details

- **Brand:** naturalex
- **Cover material:** Latex blend
- **Fill material:** Memory Foam
- **Item firmness description:** Extra Firm
- **Item weight:** 17.09 Kilograms
- **Number of layers:** 12
- **Product dimensions:** 190L x 135W x 30Th centimetres
- **Size:** 135 x 190 cm | 4ft6 Double
- **Special feature:** 7 Comfort Zones, Back Support, Breathable, Fire Retardant, Hypoallergenic
- **Top style:** Euro Top

## Images

![naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh - Image 1](https://m.media-amazon.com/images/I/41DsfnLoXQL.jpg)
![naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh - Image 2](https://m.media-amazon.com/images/I/51-J5hxB68L.jpg)
![naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh - Image 3](https://m.media-amazon.com/images/I/51UzeCHgS4L.jpg)
![naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh - Image 4](https://m.media-amazon.com/images/I/51WWlKJ7HaL.jpg)
![naturalex 4ft6 Double Mattress Memory Foam 11.8 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant, Pressure Relieving Mattress, Extrafresh - Image 5](https://m.media-amazon.com/images/I/71c0ckm8RAL.jpg)

## Questions & Answers

**Q: What makes our mattresses the best?**
A: We offer an unparalleled sleep experience thanks to our advanced technology and high-quality materials that ensure comfort and durability.

**Q: What makes our materials and technology exceptional?**
A: We use the finest materials sourced from Europe and employ innovative technology to ensure a superior sleep experience.

**Q: What are the advantages of combining memory foam, latex, and HR foam in a mattress?**
A: The combination provides support, adaptability, and durability. Latex offers coolness, memory foam relieves pressure, and HR foam provides firmness and resilience.

**Q: What makes the cost of our mattress more affordable compared to typical retail options?**
A: Purchasing directly ensures you avoid multiple intermediaries, enabling us to pass on substantial savings compared to physical shops.

**Q: Why should you trust our brand?**
A: Trust in our brand is built on a foundation of quality and value, proven by the satisfaction of 800,000 customers in France.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Memory foam Mattress
*by R***N on 12 December 2025*

Absolutely love this mattress, comfortable, and good quality, great value, price very good

### ⭐⭐⭐⭐⭐ 100% recommend this make of mattress for lightness but firm
*by P***F on 9 January 2026*

I’ve had one of these naturalex mattresses before but in a king size. I loved it. It’s So light but still with the firmness. So when I switched to single beds I bought foam mattresses thinking they were the same! How wrong was I. They were ok but at £150 each, not great and way too heavy for me. So after 2 months I search for naturelex again and found this. I was worried by the price thinking it wasn’t going to be as good as the one I had before in king size. I was so wrong. This is amazing for the weight, making it easier to change and the firmness of the mattress. I will be ordering another to replace the other one I bought too. I guarantee spending £70 on this one will be so much better than spending £150 on a heavy foam mattress. These are amazing. Especially if you’re like me where you struggle with the weight of a mattress but like the firmness.

### ⭐ Don’t waste your money
*by A***A on 29 April 2025*

It was comfortable at first but it does not last. We have had this bed for almost two years, before we had even had the bed for 10 months I contacted the company to complain about how uncomfortable this bed is. My partner and I are average size people, and both of our sides of the bed have huge dips where we sleep, need to rotate the mattress every few weeks as it is so uncomfortable. The company said they would get back to me about a replacement, after sending evidence photos and they never did. Unfortunately have to get a new bed… again I guess you get what you pay for.

## Frequently Bought Together

- naturalex 4ft6 Double Mattress Memory Foam Mattress 11 Inch Deep Extra Firm Mattress (135x190cm) Fire Retardant Skin Friendly, Extrafresh
- Utopia Bedding Quilted Mattress Protector, Breathable Mattress Pad, Deep Fitted Cover (White, Double - 135 x 190 + 38 cm)

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**Shop now:** [https://www.desertcart.jp/products/115910363-naturalex-4ft6-double-mattress-memory-foam-11-8-inch-deep](https://www.desertcart.jp/products/115910363-naturalex-4ft6-double-mattress-memory-foam-11-8-inch-deep)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-24*