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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.

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

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.

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.

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.

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

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.

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.
Firmer and more supportive

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.

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!

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.

For your peace of mind

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

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

For the highest standards of quality and safety
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.
Weights: Single: 15.5kg, Small Double: 21.5kg, Double: 24.5kg, King Size: 28.5kg, Superking: 34kg
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.
| Firmness | Firm |
| Comfort fillings | Memory Foam |
| Support system | Miracoil Springs |
| Back care | Lower back support |
| Edge support | Yes |
| Cover | Knitted cover |
| Allergy care | Hypoallergenic |
| Pressure relief | Yes |
| No roll-together | Yes |
| Single-sided | Yes |
| Guarantee | 5 years |
| Awards & accreditations | Vegan-friendly, Handcrafted in the UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Silentnight Guarantee, Product Care and Assembly Instructions |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 24cm |
| Small Double | 120cm | 190cm | 24cm |
| Double | 135cm | 190cm | 24cm |
| King Size | 150cm | 200cm | 24cm |
| Superking | 180cm | 200cm | 24cm |
Please allow for a tolerance of +/- 2cm
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.
A balanced snapshot of what customers love (and what they don't), generated by AI.
Excellent quality very comfortable
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Very comfortable.
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Lovely and comfortable, lightweight so can be turned easily, first rate product from a first rate company.
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Everything went smoothly would highly recommend
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Great value & quality purchase.
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good service and communication
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Good comfortable mattress.
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Best mattess for me me, I've had this model for years. I just buy a new one as needed. I have tried others but this has the right amount of firmness and bounce for me.
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I looked at all different products but this one stood out, my sleep quality has improved
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We had a similar mattress before and it was good we needed a replacement and chose this one as a replacement
Verified Purchase
1
Mon-Sat: 9:30am - 5:30pm
Sunday: 10am - 4pm
Mon-Sat: 09:30am - 17:30pm
Sunday: Closed
customerservice@mattressonline.co.uk