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100 Night Sleep Trial

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100 Night Sleep Trial

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Features you'll love

Support System

Foam

Conforms to your body shape, tailoring support to improve spinal alignment and posture.

Comfort Fillings

Memory Foam

Moulds to your body, giving orthopaedic support and superb comfort.

Firmness

Dual Firmness

With each side offering a different firmness level, you can simply flip this mattress over to enjoy the feel you prefer most.

Description

A thinner mattress that's ideal for guest beds and master bedrooms alike, the Mysa® Duo Memory Foam Mattress offers a truly versatile sleeping environment. With a different firmness on either side, this mattress is ideal for changing sleeping preferences, giving you the flexibility to adjust your mattress to different stages of your life. For guest rooms, it allows your friends and family to choose their preferred mattress feel, and with advanced pressure relief, you'll discover a truly restful night's sleep no matter where you place this dual-firmness mattress.

A medium feel side for all sleeping positions

One side of this mattress features Mysa's cloud-like AeroSync HRX® Foam, which is ideal for all sleeping positions with a balanced, medium feel. Contouring to your body to provide blissful tension relief, this clever foam offers essential support to every area of your unique shape.

A firmer side to offer orthopaedic support

The other side of this innovative mattress features firmer AeroSync HRX® foam, specially engineered to provide robust, orthopaedic support that helps align your spine. Perfect for those who suffer from back pain or general aches and pains, this side of the mattress is great for helping you optimise your sleeping posture.

Impressive comfort & support on both sides

Each side of this dual-firmness mattress offers incredible support and tension relief, so no matter how you choose to flip it, you can rest easy knowing you're expertly cushioned. With over 20 pressure-relieving points, this mattress helps to distribute your weight evenly, alleviating stress on key areas of your body for a rejuvenating night's rest. The Mysa® Duo Memory Foam Mattress also helps to promote blood circulation and reduce tossing and turning, so no matter how you use it, you'll discover a restful night's sleep.

1278789-5063475065160

Features

AeroSync HR-GX® Comfort Layer

This multi-zoned, pressure-relieving layer is crafted from high-resilience polyurethane foam, contouring your body shape for personalised cushioning at every point of contact.

15cm Depth

This mattress is approximately 15cm deep.

BeFree© Breathable 3D Mesh Knit Cover

For enhanced ventilation and airflow, this specially engineered cover combines the comfort of knitted fabric with the breathability of 3D mesh. Offering 40% more breathability than standard knits of the same weight, this cover helps to keep you cool, fresh, and dry all night long. It's also machine-washable at 40°C for complete convenience.

Vacuum Packed & Rolled

Rolled mattresses have the advantage of being easy to transport, especially to upstairs bedrooms. When unrolled, they expand fully over time, usually being comfortable enough to sleep on after 48 hours.

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.

Hypoallergenic

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

Turnable

The mattress has fillings on both sides. Double-sided mattresses need to be turned regularly to keep them in good condition.

Vegan Friendly

This product is made from materials that are 100% free from animal by-products.

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

Dual firmness supports changing sleep needs or guest preferences
Both sides contour to your shape for full-body pressure relief
Firmer side provides orthopaedic support for enhanced spinal alignment
Helps to reduce aches, pains, and tension across pressure points
Improves your circulation by evenly distributing body weight
With a balanced feel, the medium side is suitable for all sleeping positions

Up to 30% off

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.

Mysa® Duo Memory Foam Mattress

5.0 out of 5

5 Star (1)

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Experience personalised comfort and support for a restful night’s sleep.

AeroSync HR-GX® Comfort Layer

15cm Depth

BeFree© Breathable 3D Mesh Knit Cover

Firmness: Dual Firmness

£139

RRP £199

Save £60

from £139

Size

Single 3' x 6'3"

£139 RRP £199

In stock

Small Double 4' x 6'3"

£179 RRP £249

In stock

Double 4'6" x 6'3"

£179 RRP £249

Only 2 left

King Size 5' x 6'6"

£199 RRP £299

In stock

Super King 6' x 6'6"

£219 RRP £349

In stock

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Description & Features

A medium feel side for all sleeping positions

A firmer side to offer orthopaedic support

Impressive comfort & support on both sides

AeroSync HR-GX® Comfort Layer

This multi-zoned, pressure-relieving layer is crafted from high-resilience polyurethane foam, contouring your body shape for personalised cushioning at every point of contact.

15cm Depth

This mattress is approximately 15cm deep.

BeFree© Breathable 3D Mesh Knit Cover

Vacuum Packed & Rolled

No Roll Together

Pressure Relieving

Hypoallergenic

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

Turnable

The mattress has fillings on both sides. Double-sided mattresses need to be turned regularly to keep them in good condition.

Vegan Friendly

This product is made from materials that are 100% free from animal by-products.

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.

Dual firmness supports changing sleep needs or guest preferences
Both sides contour to your shape for full-body pressure relief
Firmer side provides orthopaedic support for enhanced spinal alignment
Helps to reduce aches, pains, and tension across pressure points
Improves your circulation by evenly distributing body weight
With a balanced feel, the medium side is suitable for all sleeping positions

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.

1278789-5063475065160

Mysa® 5 Year Guarantee

Mysa® 5 Year Guarantee

In the unlikely event you discover a fault with your mattress due to poor workmanship or faulty materials, you'll be covered by a generous 5-year guarantee. Please see Mysa's terms and conditions for more information.

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

151,670+ Trees planted so far

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Mattress recycling

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Mysa® Duo Memory Foam 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

A medium feel side for all sleeping positions

A firmer side to offer orthopaedic support

Impressive comfort & support on both sides

Additional features

Mysa® Duo Memory Foam Mattress

A medium feel side for all sleeping positions

A firmer side to offer orthopaedic support

Impressive comfort & support on both sides

Additional features

Old Mattress Removal

Rated Excellent

Frequently paired with

More with Hypoallergenic

More from Mysa®

You might also like

More to explore

Your order helps us plant trees

Free, fast delivery

Mattress recycling

0% Interest finance

Mysa® Duo Memory Foam Mattress

£

Pair it with