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Features you'll love

Support System

Open Coil Springs

Lattice shaped high tensile steel springs give a traditional, durable support.

Comfort Fillings

Cool Gel Memory Foam

Infused with gel microbeads to regulate temperature, while also improving breathability.

Firmness

Medium Firm

Good for people who change sleeping position.

Aaron Wilkes

Training Expert, Silentnight

What the Sleep Expert thinks...

"This mattress is a favourite of mine for its incredible cooling properties. It's perfect for hot sleepers or those going through menopause, as it keeps you cool and comfortable all night long."

Description

With orthopaedic support, gel-infused comfort layers, and clever springs that respond to your movements, the Silentnight UltraGel Miracoil Pillowtop Mattress is sure to upgrade your sleep and help you wake up refreshed every morning.

Orthopaedic support from Silentnight's innovative Miracoil® spring system

A system of Silentnight's innovative Miracoil® springs provides medium-firm support from head to toe. Dispersing your weight evenly over the mattress's surface, this spring system reduces pressure on key areas of your body and naturally responds to your movements to ensure consistent support in all the right places.

Cooling comfort that draws heat away from your body all night long

For cooling comfort, enjoy a layer of UltraGel™ comfort. Cleverly crafted with gel, this layer consistently draws heat away from your body all night long, preventing overheating and maintaining a refreshing sleeping environment. Between the spring layer and this innovative gel layer are layers of durable foam and stabilising foam, designed to enhance the lifespan of your Silentnight UltraGel Miracoil Pillowtop Mattress and enhance full-body comfort.

An indulgent pillowtop that lets you 'sink in' without compromising support

The luxurious pillowtop layer is the cherry on top of this orthopaedic Silentnight mattress. Offering immediate full-body cushioning as soon as you climb into bed, this soft, plush pillowtop provides an extra level of pressure relief for maximum comfort. Highly breathable and hypoallergenic, this mattress is ideal for allergy sufferers or anyone wanting a fresher, healthier sleeping surface.

1278818-5063475203395

Features

Miracoil® Springs

Silentnight`s world-famous Miracoil® spring system is designed to give perfect support to all parts of the body for a complete restful night`s sleep. Enjoy an undisturbed sleep with individual sleeping zones and no roll-together.

UltraGel™ Memory Foam

This advanced comfort layer is 5x more breathable than standard memory foam, offering soothing pressure relief, gentle bounce-back, and a cooler, more undisturbed night’s sleep.

29cm Depth

This mattress is approximately 29cm deep.

Quilted Sleep Surface

Modern quilted soft-knit fabric for a smooth and comfortable sleep surface.

Orthopaedic Support

Designed to offer a firmer sleep surface, providing targeted support for your back and joints.

No Need To Turn

A single-sided mattress which does not need to be turned/flipped. One-sided mattresses should, however, be rotated head to toe regularly.

Pillow Top

Pillow top mattresses have the benefit of an additional pillow layer of plush fillings on the top of the mattress, which provides extra luxurious comfort.

No Roll Together

Individual personal sleeping zones mean that you won't be disturbed if your partner rolls or moves, as you won't feel their motion. There's also no tendency to roll towards the middle of the mattress.

Pressure Relieving

This type of mattress gives maximum pressure relief, allowing your body weight to spread across it evenly. This ultimately means less tossing and turning throughout the night and a more relaxing and restful sleep.

Turning Handles

Flag-stitched handles are attached to the sides of the mattress to assist in turning or rotating.

Hypoallergenic

Being hypoallergenic, this is the perfect item for allergy sufferers - or anyone looking for a healthy night's sleep.

Hand Tufted

Tufts help to secure the luxury fillings in place, helping the mattress retain it's fullness and plumpness over time.

Breathable Mesh Border

Soft and hypoallergenic, this border allows for maximum air circulation thanks to an innovative mesh design.

Made in the UK

This item has been manufactured in the UK.

Fire Resistant - Low Hazard

This product conforms to the BS7177: 2008 standard for domestic use (low hazard) - ideal for use at home.

Additional features

Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.

Benefits

Miracoil® spring unit provides consistent orthopaedic support to maintain a healthier posture
UltraGel™ layer moulds to your body as it draws heat away for a cooler, fresher sleep
Stabilising foam layers enhance the mattress' durability and enhance comfort
Plush pillowtop provides immediate comfort as soon as you get into bed for blissful tension relief
Hypoallergenic and highly breathable, this mattress is ideal for allergy sufferers

Up to 26% off

Expert Approved

You've got the best price

As Online Bed Retailer of the Year 2025 - 2026, you can trust us to get you the best price. With our fast delivery and exceptional service, you won't find better elsewhere.

Silentnight UltraGel Miracoil Pillowtop Mattress

Experience cooler, fresher sleep with tailored support for your best night ever.

Miracoil® Springs

UltraGel™ Memory Foam

29cm Depth

Firmness: Medium Firm

£389

RRP £529

Save £140

from £389

Size

Single 3' x 6'3"

£389 RRP £529

Only 1 left

Small Double 4' x 6'3"

£509 RRP £689

2-3 Weeks

Double 4'6" x 6'3"

£509 RRP £689

2-3 Weeks

King Size 5' x 6'6"

£619 RRP £829

In stock

Super King 6' x 6'6"

£739 RRP £1009

3-5 Days

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FREE delivery Tomorrow, 20th January
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Description & Features

Orthopaedic support from Silentnight's innovative Miracoil® spring system

Cooling comfort that draws heat away from your body all night long

An indulgent pillowtop that lets you 'sink in' without compromising support

Miracoil® Springs

UltraGel™ Memory Foam

This advanced comfort layer is 5x more breathable than standard memory foam, offering soothing pressure relief, gentle bounce-back, and a cooler, more undisturbed night’s sleep.

29cm Depth

This mattress is approximately 29cm deep.

Quilted Sleep Surface

Modern quilted soft-knit fabric for a smooth and comfortable sleep surface.

Orthopaedic Support

Designed to offer a firmer sleep surface, providing targeted support for your back and joints.

No Need To Turn

A single-sided mattress which does not need to be turned/flipped. One-sided mattresses should, however, be rotated head to toe regularly.

Pillow Top

Pillow top mattresses have the benefit of an additional pillow layer of plush fillings on the top of the mattress, which provides extra luxurious comfort.

No Roll Together

Pressure Relieving

Turning Handles

Flag-stitched handles are attached to the sides of the mattress to assist in turning or rotating.

Hypoallergenic

Being hypoallergenic, this is the perfect item for allergy sufferers - or anyone looking for a healthy night's sleep.

Hand Tufted

Tufts help to secure the luxury fillings in place, helping the mattress retain it's fullness and plumpness over time.

Breathable Mesh Border

Soft and hypoallergenic, this border allows for maximum air circulation thanks to an innovative mesh design.

Made in the UK

This item has been manufactured in the UK.

Fire Resistant - Low Hazard

This product conforms to the BS7177: 2008 standard for domestic use (low hazard) - ideal for use at home.

Miracoil® spring unit provides consistent orthopaedic support to maintain a healthier posture
UltraGel™ layer moulds to your body as it draws heat away for a cooler, fresher sleep
Stabilising foam layers enhance the mattress' durability and enhance comfort
Plush pillowtop provides immediate comfort as soon as you get into bed for blissful tension relief
Hypoallergenic and highly breathable, this mattress is ideal for allergy sufferers

Additional features

Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.

1278818-5063475203395

Silentnight 5 Year Guarantee

Silentnight 5 Year Guarantee

We know that reliability and peace of mind matter to our customers, that’s why we offer a full manufacturer’s guarantee on all of our mattresses, upholstered divan beds and headboards.

Download warranty/guarantee information

100 Night Sleep Trial

Finding the perfect mattress shouldn't be stressful. That's why we offer a generous 100-night sleep trial. Snuggle in and test it out for at least 50 nights. If it's not your perfect, match we’ll offer you an exchange for a mattress that you love even more.

Delivery & Recycling

We provide our award-winning Free Next Day Delivery service to most locations, sending a proper night’s sleep out far and wide. Hassle-free and convenient, you can even choose a time and day that suits you, have us take your old mattress away for recycling, and get us to deliver to your room of choice!

In some places, a small fee will be charged to help us get you your best night’s rest as quickly as possible. Take a look at the following postcodes to see if this applies to you, and if you’re not sure, then use our helpful Postcode Checker to help you shop with confidence.

AB10-AB16, AB21-AB25, AB30-AB39, AB41-AB45, AB51-AB56
CA1-CA9
DD1-DD11
DG1-DG14, DG16
EH1-EH49, EH51-EH55, EH91, EH95, EH99
FK1-FK21
G1-G5, G9, G11-G15, G20-G23, G31-G34, G40-G46, G51-G53, G58, G60-G79, G18-G84, G90
IV1-IV19, IV30-IV32, IV36
KA1-KA30
KY1-KY16, KY99
LA1-LA7
ML1-ML12
PH1-PH26
TD1-TD15

Old Mattress Removal

For just £39, our fast and friendly team will collect your old mattress at the exact same time we deliver your new one. No waiting, no heavy lifting, and no clutter. 100% of your old mattress is carefully recycled and kept out of landfill. Simply select 'Old Mattress Removal' at checkout.

Sustainability

Your order helps us plant trees

151,470+ Trees planted so far

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151,470+ Trees planted so far

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Mattress recycling

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Silentnight UltraGel Miracoil Pillowtop Mattress

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*Delivery charges may apply for some areas. Please see our delivery page for more information.
1. Order by 6pm for next day delivery between Monday-Friday, 12pm on Saturday and 3pm on Sunday. The 'Order by' time may be subject to change dependant on our delivery partners.

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MattressNextDay, 116 Joseph Wilson Industrial Estate, Whitstable, Kent, CT5 3SN

Features you'll love

Aaron Wilkes

What the Sleep Expert thinks...

Orthopaedic support from Silentnight's innovative Miracoil® spring system

Cooling comfort that draws heat away from your body all night long

An indulgent pillowtop that lets you 'sink in' without compromising support

Additional features

Silentnight UltraGel Miracoil Pillowtop Mattress

Orthopaedic support from Silentnight's innovative Miracoil® spring system

Cooling comfort that draws heat away from your body all night long

An indulgent pillowtop that lets you 'sink in' without compromising support

Additional features

Old Mattress Removal

Need help?

Frequently paired with

More Medium Firm Mattresses

More with Pocket Springs

More from Silentnight

You might also like

More to explore

Your order helps us plant trees

Free, fast delivery

Mattress recycling

0% Interest finance

Silentnight UltraGel Miracoil Pillowtop Mattress

£

Pair it with