---
product_id: 228042527
title: "Silentnight Miracoil Ortho Luxury Mattress | Extra Firm | King"
brand: "silentnight"
price: "¥768212"
currency: JPY
in_stock: true
reviews_count: 8
category: "Silentnight"
url: https://www.desertcart.jp/products/228042527-silentnight-miracoil-ortho-luxury-mattress-extra-firm-king
store_origin: JP
region: Japan
---

# Hypoallergenic & dustmite resistant Orthopaedic zoned support Exclusive Miracoil spring system Silentnight Miracoil Ortho Luxury Mattress | Extra Firm | King

**Brand:** silentnight
**Price:** ¥768212
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your sleep game with Silentnight’s Miracoil Ortho – where firm meets flawless!

## Quick Answers

- **What is this?** Silentnight Miracoil Ortho Luxury Mattress | Extra Firm | King by silentnight
- **How much does it cost?** ¥768212 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/228042527-silentnight-miracoil-ortho-luxury-mattress-extra-firm-king)

## Best For

- silentnight enthusiasts

## Why This Product

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

## Key Features

- • **King Size Luxury:** Generous 200x150 cm dimensions with a plush Euro Top for the ultimate sleep upgrade.
- • **Sleep Clean & Fresh:** Hypoallergenic, dustmite resistant materials keep your sleep environment pristine and healthy.
- • **Built to Last 5 Years:** Durability guaranteed with a 5-year manufacturer warranty for peace of mind.
- • **Precision Zoned Support:** Miracoil springs target key body zones for perfect spinal alignment and posture.
- • **Firm Yet Cloud-Like Comfort:** Extra firm feel with memory foam and EcoComfort fibers for pressure relief without compromise.

## Overview

The Silentnight Miracoil Ortho Mattress King combines an exclusive Miracoil spring system with orthopaedic zoned support and hypoallergenic fillings. Designed for extra firm comfort, it promotes spinal alignment and pressure relief, backed by a 5-year warranty. Crafted in the UK with breathable EcoComfort fibers and a hand-tufted Euro Top, this mattress offers a premium sleep experience tailored for adults seeking durability and health-conscious rest.

## Description

This premium mattress combines Miracoil zoned spring system and eco-friendly fibers for firm, orthopaedic support and a refreshing, hypoallergenic sleep.

Review: Great, firm mattress. - We have had this mattress for several months and it is great. Backache have stopped and sleeping much better. Comfortable and not in the least bit noisy! Delivery was quick and on time.
Review: Noisy and uncomfortable - The mattress was good at start but after few months it has developed a loud creaking noise from the springs, which can be felt directly on my back, causing discomfort. There is also a significant sag or dip on the side where I sleep, making it hard to maintain a comfortable position and resulting in poor support.

## Features

- ECO COMFORT FIBRES : Sustainable and breathable for a refreshing sleep night's sleep that doesn’t cost the earth
- LONG LASTING SUPPORT : The Miracoil spring system provides zoned support for perfect spinal alignment and offers a firmer spring support
- HAND TUFTED SLEEP SURFACE : for additional back support and a naturally firmer feel
- HYPOALLERGENIC : Offering you a clean and fresh night's sleep
- FIRMER FEEL : enjoy extra support from head to toe- ideal for front or back sleepers
- HANDMADE IN THE UK : by the UK's most trusted bed brand

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07H564DHS |
| Age Range Description | Adult |
| Benefits | Pressure Relief, Improves Sleep, Hypoallergenic, Back Pain Relief, Posture Support |
| Best Sellers Rank | 30,316 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 114 in Mattresses (Home & Kitchen) |
| Brand | Silentnight |
| Brand Name | Silentnight |
| Colour | White |
| Construction Type | Innerspring |
| Country Of Origin | United Kingdom |
| Cover Material | Cotton, Polyester |
| Customer Reviews | 3.7 out of 5 stars 262 Reviews |
| Fill Material | Innerspring Coils |
| Item Depth | 24 inches |
| Item Dimensions | 200 x 150 x 23 centimetres |
| Item Dimensions L x W x Thickness | 2L x 1.5W x 0.23Th metres |
| Item Firmness Description | Extra Firm |
| Item Thickness | 24 Centimetres |
| Item Type Name | Mattress |
| Item Weight | 24 Kilograms |
| Item firmness description | Extra Firm |
| Item weight | 24 Kilograms |
| Manufacturer | Silentnight |
| Manufacturer Part Number | 25ECOM150MH0001 |
| Manufacturer Warranty Description | 5 year manufacturer. |
| Material Type | Cotton, Eco Comfort Fibres™, Polyester |
| Mattress Coil Type | Pocketed Coil |
| Mattress Comfort Layer Material | Memory foam |
| Mattress Type | Standard Mattress |
| Model Name | Miracoil Deluxe Ortho |
| Model Number | 25ECOM150MH0001 |
| Number of Items | 1 |
| Number of Layers | 2 |
| Number of Mattress Coils | 500 |
| Number of Packs | 1 |
| Portable | No |
| Product Care Instructions | Hand Wash Only |
| Product dimensions | 2L x 1.5W x 0.23Th metres |
| Set Name | King |
| Size | King |
| Special Features | Extra Firm, Fire-Retardant, Hypoallergenic, Memory Foam |
| Style Name | Miracoil Ortho Luxury |
| Top style | Euro Top |
| Unit Count | 1.0 count |
| top-style | Euro Top |

## Product Details

- **Brand:** Silentnight
- **Cover material:** Cotton, Polyester
- **Fill material:** Innerspring Coils
- **Item firmness description:** Extra Firm
- **Item weight:** 24 Kilograms
- **Number of layers:** 2
- **Product dimensions:** 2L x 1.5W x 0.23Th metres
- **Size:** King
- **Special feature:** Extra Firm, Fire-Retardant, Hypoallergenic, Memory Foam
- **Top style:** Euro Top

## Images

![Silentnight Miracoil Ortho Luxury Mattress | Extra Firm | King - Image 1](https://m.media-amazon.com/images/I/81Z+o-PlZ3L.jpg)

## Available Options

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

## Questions & Answers

**Q: Will my mattress smell?**
A: It’s quite normal for new mattresses to have a slight odour when they are unpackaged, however, it is nothing to worry about and by airing the mattress you will find that any odours will pass.

**Q: Is settlement normal?**
A: Your new mattress is zoned to complement the human body and it is the underlying support system that ensures you are offered optimum support in the zoned areas. Some settlement in the filling layers is perfectly normal, there is no need for concern.

**Q: Can I clean my mattress?**
A: We always recommend using a mattress protector which you wash on a regular basis along with your sheets. Using detergents or chemical cleaners on your mattress may damage the fabric and stitching. Your mattress cover is not suitable for washing.

**Q: Which sleep accessories are best suited to this mattress?**
A: The Silentnight Deep Sleep Pillow, Duvet and Mattress Protector complements the mattress perfectly, offering great comfort for a snuggly night’s sleep.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great, firm mattress.
*by S***N on 5 June 2026*

We have had this mattress for several months and it is great. Backache have stopped and sleeping much better. Comfortable and not in the least bit noisy! Delivery was quick and on time.

### ⭐ Noisy and uncomfortable
*by U***N on 2 November 2024*

The mattress was good at start but after few months it has developed a loud creaking noise from the springs, which can be felt directly on my back, causing discomfort. There is also a significant sag or dip on the side where I sleep, making it hard to maintain a comfortable position and resulting in poor support.

### ⭐⭐⭐⭐⭐ Good value for money
*by P***N on 3 February 2026*

This mattress is so comfy and firm with no roll together

## Frequently Bought Together

- Silentnight Miracoil Ortho Luxury Mattress | Extra Firm | King
- Caroline Shatuik Waterproof Mattress Protector King |40cm Extra Deep Fitted King Size Waterproof Bed Protector Topper | Non Noisy & Breathable Mattress Cover King Size Bed(152 X 200 +40CM)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-09*