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Silentnight Seoul Miracoil Memory Mattress

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From£269.95

up to

20% off

Comfort trial

Comfort fillings

Firmness rating

Support system

Featuring Silentnight's Miracoil spring system for excellent support and a sumptuous Memory foam layer for the ultimate in comfort and pressure point relief.

Reasons to Buy

Miracoil Springs
Miracoil Springs

Silentnight's unique open coil spring system provides separate support zones that perfectly support your spine and evenly distribute your weight to relieve pressure while you sleep.

Memory Foam
Memory Foam

Memory foam creates a cushioned feel by cradling to your unique shape. Enhancing the remarkable comfort, the foam has a sumptuous feel, delivering a cosy sleep.

Knitted cover
Knitted cover

A sumptuously soft finish that provides additional cosiness and warmth. Knitted covers enhance airflow and are incredibly breathable. So, you can enjoy a cooler snooze.

Pressure relief
Pressure relief

Offering a soothing night's rest by evenly distributing your body weight across the mattress. The pressure point relief provides the ultimate relaxation needed for a deep slumber.

Hypoallergenic
Hypoallergenic

Free of allergens for a cleaner, healthier sleep. No allergenic materials were used so you can enjoy an undisturbed rest without the risk of allergy reactions or respiratory problems.

Lower back support
Lower back support

Additional support added where you need it the most. Enhanced lower back support promotes better spinal alignment and relieves any aches.

Reinforced mattress edge
Reinforced mattress edge

Durable edge-to-edge support provides a maximised sleeping surface for a more secure sleep. Sit and lay comfortably right to the very edge with zero 'roll-off' sensation.

No roll-together
No roll-together

Special design made to create your own personal sleep zone. No distractions or disturbances when your partner moves. So you can enjoy an undisturbed rest.

Firm
Firm

Firmer and more supportive

24cm deep
24cm deep

About 9.4 inches deep. Depth is an important factor when buying a mattress as it can affect the suitability for particular bedding, mattress toppers and bed frames.

Single-sided
Single-sided

With a single-sided mattress, there's no need to flip. Simply rotate every few months to care for your mattress. Fuss free mattress maintenance!

Vegan-friendly
Vegan-friendly

For your ease of mind, vegan-friendly mattresses contain no animal derived materials. Sleep in peaceful assurance, knowing it is not manufactured in the same space as natural fibres.

5 Year Guarantee
5 Year Guarantee

For your peace of mind

Handcrafted in the UK
Handcrafted in the UK

Expertly handcrafted in the UK. This product helps to support our economy and helps to reduce environmental impact.

Fire Resistant
Fire Resistant

This product conforms to BS7177: 2008, for use at home

National Bed Federation Approved Brand
National Bed Federation Approved Brand

For the highest standards of quality and safety

Description

The Seoul Memory Miracoil Mattress is a wonderfully comfortable Memory foam mattress, from renowned Silentnight. As Silentnight's entry-level Memory foam mattress, you can enjoy great value, firmer support and incredible comfort.

First off, let's focus on the Miracoil springs. As Silentnight's Hippo and Duck demonstrate, they're built to support anyone, regardless of shape and size. With super-stable mattress edges, there's no roll-off, and the head-to-foot spring alignment prevents roll-together.

There are even three support zones: gentle support for your lighter body areas and enhanced support for your hips and lower back where the majority of body weight is concentrated.

Underneath the soft-touch knitted micro-quilted cover, there's 2cm of plush Memory foam. This helps soothe away pressure points and hugs your body's shape perfectly.

Caring for your mattress is nearly effortless - there's no need to turn it over. Simply rotate it and it'll stay in great shape!

As one of the first B-Corp certified sleep brands, Silentnight have proven why they are the UK’s most trusted name in sleep. Their commitment to quality and environmentally responsible practices ensures a better night’s rest and a brighter future for you.

Benefits

  • Topped with 2cm of body-loving Memory foam
  • Miracoil springs offer enhanced support
  • Zoned mattress varies support where you need it most
  • Firmer level of support
  • Sleep edge-to-edge - evenly stable from one edge to the other
  • Knitted fabric cover with a micro-quilted surface
  • Effortless care - rotate-only mattress, no need to flip over
  • Mattress depth: 24cm (9.4") approx
  • 5 Year Guarantee
  • Made in the UK

    Weights: Single: 15.5kg, Small Double: 21.5kg, Double: 24.5kg, King Size: 28.5kg, Superking: 34kg

60-Night Comfort Trial

This mattress comes with a 60-Night Comfort Trial - like all of our mattresses!

The trial lets you test your mattress for up to 60 nights. If it's not quite right for you, you can exchange it for a new one.

It can take some time to get used to a new mattress, which is why we ask you to sleep on your mattress for 30 nights. If you're not happy with the feel after 30 nights, simply contact our Customer Service Team, and we'll arrange a mattress exchange.

Click here for more info about our 60-Night Comfort Trial.

Videos

About Silentnight Miracoil
About Silentnight Memory

Specification

FirmnessFirm
Comfort fillingsMemory Foam
Support systemMiracoil Springs
Back careLower back support
Edge supportYes
CoverKnitted cover
Allergy careHypoallergenic
Pressure reliefYes
No roll-togetherYes
Single-sidedYes
Guarantee5 years
Awards & accreditationsVegan-friendly, Handcrafted in the UK, Approved by the National Bed Federation
Fire resistanceConforms to BS7177: 2008, for use at home
DownloadsSilentnight Guarantee, Product Care and Assembly Instructions

Dimensions

SizeWidthLengthDepth
Single90cm190cm24cm
Small Double120cm190cm24cm
Double135cm190cm24cm
King Size150cm200cm24cm
Superking180cm200cm24cm

Please allow for a tolerance of +/- 2cm

Delivery

The following delivery methods apply to mainland England and most of Scotland, Wales and Northern Ireland. Please read our delivery page for more information.

Next day delivery (weekdays only)

Order before

FREE

Weekday of your choice

Order up to 60 days ahead

FREE

Weekend

On Saturday or Sunday of your choice

£17.50

Delivery to the front door of your building

Free upgrade for King Size and Superking to your room of choice

Yes

Two-hour delivery time slot

We’ll let you know on the day before your delivery

Yes

Call to let you know we’re on our way

On your delivery day

Yes

Delivery to your room of choice

Free upgrade for King Size and Superking

£20.00

Mattress recycling

We'll take away your old mattress

£35.00

Delivery is on an all-day service, 7am - 8pm for mainland England and most of Scotland, Wales and Northern Ireland.

Need further information? Please visit our Delivery page.

Reviews

4.6/5

out of 391 reviews onTrustpilot logo

Product review stars

Customer Reviews Summary

summarised by AI

5 starsVicki
4 March 2026

Verified Purchase

5 starsMrs Pettigrew
25 February 2026

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5 starsDavid
1 February 2026

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5 starsAndrew
3 November 2025

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5 starsCb
6 October 2025

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5 starsAnne
22 July 2025

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5 starsNeil
19 July 2025

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5 starsVictoria
11 February 2025

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5 starsRachael
31 January 2025

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4 starsStephen
26 January 2025

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