---
product_id: 679093613
title: "5FT King Mattress Extra Firm Comfort,12.6 Inch Viscoelastic Gel Memory Foam Mattress, Orthopedic Support - Back & Hip Pain Relief - Breathable 3D Soft Fabric, OEKO-TEX Certified, 150x200x32cm, Upsilon"
brand: "cosmos"
price: "₨356078"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/679093613-5ft-king-mattress-extra-firm-comfort-12-6-inch-viscoelastic
store_origin: LK
region: Sri Lanka
---

# Fire retardant & OekoTex certified 12.5 inch deep extra firm memory foam 7 zoned ergonomic body support 5FT King Mattress Extra Firm Comfort,12.6 Inch Viscoelastic Gel Memory Foam Mattress, Orthopedic Support - Back & Hip Pain Relief - Breathable 3D Soft Fabric, OEKO-TEX Certified, 150x200x32cm, Upsilon

**Brand:** cosmos
**Price:** ₨356078
**Availability:** ✅ In Stock

## Summary

> 🛏️ Sleep like royalty, wake up unstoppable!

## Quick Answers

- **What is this?** 5FT King Mattress Extra Firm Comfort,12.6 Inch Viscoelastic Gel Memory Foam Mattress, Orthopedic Support - Back & Hip Pain Relief - Breathable 3D Soft Fabric, OEKO-TEX Certified, 150x200x32cm, Upsilon by cosmos
- **How much does it cost?** ₨356078 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/679093613-5ft-king-mattress-extra-firm-comfort-12-6-inch-viscoelastic)

## Best For

- cosmos enthusiasts

## Why This Product

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

## Key Features

- • **King Size Luxury:** Spacious 5ft x 6ft6 mattress designed for ultimate adult and family comfort.
- • **Dual-Season Comfort:** Winter AloeTouch softness meets summer VISCOGEL cooling for year-round rest.
- • **Active-Latex Technology:** High-density foam that hugs your body, boosting sleep quality by 30%.
- • **Ergonomic 7-Zone Support:** Tailored comfort for head to feet, perfect for every sleep style.
- • **Convenient Mattress-in-a-Box:** Vacuum-packed for easy delivery and quick 72-hour expansion.

## Overview

The COSMOS 5ft King Size Mattress features a 12.5-inch deep extra firm memory foam core with 7 zoned support areas to optimize spinal alignment and comfort. Designed with dual-season reversible sides—AloeTouch for winter softness and VISCOGEL foam for summer cooling—this fire retardant, hypoallergenic mattress is OekoTex certified for safety and hygiene. Delivered vacuum-packed in a box, it expands fully within 72 hours and comes with a 5-year warranty, making it a smart, luxurious upgrade for any modern bedroom.

## Description

5ft King Size Mattress Memory Foam 12.5 Inch Deep Extra Firm Mattress (150x200cm) Edge Support Fire Retardant Skin Soft, Upsilon

## Features

- 🛌🏻 This is Your Mattress for EXTRA FIRM 7 ZONED SUPPORT : Because we spend a third of our lives in bed, this memory foam mattress is designed to give you an extraordinary feeling of comfort. The viscoelastic foam mattress supports you across 7 zones, providing support for 7 main parts of the body: head & neck, shoulders, back, waist, buttocks, legs and feet. Suitable for every sleeping position.
- 😴 This is Your Mattress For KING SIZE COMFORT : Indulge in sweet nights rest on this king size memory foam mattress. This king size bed mattress is perfect for adults and children, side and back sleepers. Fits all UK standard bed bases (5ft x 6ft6, 150cm x 200cm). High-quality core for ideal adaptability. This 12.5 inch thick mattress provides excellent support for the spine and offers you the well-being and comfort your body craves.
- ✅ This is Your Mattress For BODY HUGGING SUPPORT : This king size mattress features Active-Latex multilayer technology. It balances softness and elasticity, easing pressure from tired muscles, thanks to high - density support. It has been proven to improve your overall sleep by 30% and general wellbeing by 40%, allowing you to wake up refreshed. Featuring a padded mattress topper, and gold embroidered stitching on the mattress.
- 🔥 This is Your Mattress For SAFETY & HYGIENE : Protected by fire safety standards, the winter side of the mattress contains thick and insulating AloeTouch double stretch, extra soft fabric which hugs your body to sleep. The summer side features VISCOGEL ACTIF foam for a therapeutic rest on warm nights. Certified by OekoTex.
- 🎁 This is Your MATTRESS IN A BOX : This 32cm high king size mattress has been vacuum-compressed, sealed and neatly rolled in a box for shipping and delivering directly to you. Please wait 72 hours after opening the box to allow the 5ft memory foam mattress to expand fully, which will help improve the durability and comfort of the mattress. All naturalex mattresses come with a 5 year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | COSMOS |
| Product Dimensions | 200 x 150 x 32 cm; 22.99 kg |
| Material | Polyester Blend |
| Special Features | Dual Seasons, Ergonomic, Fire Retardant, Hypoallergenic, Reversible |
| Item Weight | 23 kg |

## Product Details

- **Brand:** COSMOS
- **Size:** 150 x 200 cm | 5ft King
- **Product dimensions:** 2L x 1.5W x 0.32Th metres
- **Item firmness description:** Extra Firm
- **Cover material:** Polyester Blend
- **Number of layers:** 12
- **Fill material:** Memory Foam, Latex
- **Special feature:** Dual Seasons, Ergonomic, Fire Retardant, Hypoallergenic, Reversible
- **Model name:** COSMOS
- **Construction type:** Hybrid

## Images

![5FT King Mattress Extra Firm Comfort,12.6 Inch Viscoelastic Gel Memory Foam Mattress, Orthopedic Support - Back & Hip Pain Relief - Breathable 3D Soft Fabric, OEKO-TEX Certified, 150x200x32cm, Upsilon - Image 1](https://m.media-amazon.com/images/I/81IhL71rGxL.jpg)

## Available Options

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

## 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.

## Frequently Bought Together

- COSMOS 5ft King Size Mattress Memory Foam 12.5 Inch Deep Extra Firm Mattress (150x200cm) Edge Support Fire Retardant Skin Soft, Upsilon
- Bed'Ore 100% Waterproof Mattress Protector King Size Cotton Terry Top - Extra Deep 30cm Fitted Skirt - King Size Mattress Protector - Super Absorbent - Machine Washable - King (152x200) cm

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**Shop now:** [https://www.desertcart.lk/products/679093613-5ft-king-mattress-extra-firm-comfort-12-6-inch-viscoelastic](https://www.desertcart.lk/products/679093613-5ft-king-mattress-extra-firm-comfort-12-6-inch-viscoelastic)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-23*