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Comfort trial

Comfort fillings
Firmness rating

Support system
Get a lavishly comfortable sleep with the Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top Mattress. Its 2400 pocket springs offer unique support while keeping you comfortably cool.

Individualised springs encased in cloth pockets. Expertly adapting to movement to distribute personalised support to each part of your body.

This mattress has 1400 miniature movement & pressure responsive pocket springs layered on top of Sealy's super-supportive Posture Tech 660 spring system.

For a cooler night's sleep, Geltex is the perfect option. Supremely breathable, this foam layer reduces overheating because of its open-cell structure.

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.

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.

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.
Not too soft, not too firm - the perfect balance

About 12.2 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.

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 Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top Mattress is designed for all around comfort. All with the ergonomic support you expect from the expert bed makers at Sealy.
Support Pockets
The Winslow mattress contains 1000 individual pocket springs for optimal support. An additional 1400 mini pocket springs each react independently to your body's unique shape and movements. All 2400 springs limit that 'roll-together' feeling, resulting in a supported, undisturbed sleep for you and your partner.
Take the pressure off
The breathable layer of Geltex gel foam keeps you from overheating as you sleep, so you can awaken feeling refreshed.
Geltex offers unbeatable pressure-relief. It springs back into shape quicker than memory foam and distributes your weight for unparalleled support. Say goodbye to aches and pains after sleeping on this mattress!
Triple comfort
Complete with a quilted pillow top, this mattress provides sumptuous comfort. At 31cm deep, this is a mattress you can really snuggle up on. The premium knit fabric cover is the finishing touch to a luxuriously comfortable night's sleep.
Best of both worlds
As this mattress is medium, it serves as a perfect in-between option. It's neither too hard nor too soft so that you can have a supported sleep that is just right.
Easy to handle
This mattress is single sided so that you don't have to deal with the hassle of flipping it over! Four vertical handles make moving and turning a breeze.
Local and sustainable
Sleep easy knowing that this UK manufactured mattress won't end up in a landfill at the end of its life as it is 100% recyclable. With a 5 Year Guarantee you can rest assured that this mattress has got your back.
Weights: Single: 31kg, Double: 46kg, King Size: 53kg, Superking: 63kg
This mattress comes with a free 60-night comfort trial - like all of our mattresses!
The trial allows you to test your mattress for 60 nights, and if you don't like it, you can swap it!
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 don't like the feel of your mattress after 30 nights, simply get in touch! We'll be happy to swap it for you.
| Firmness | Medium |
| Comfort fillings | Geltex |
| Support system | Pocket Springs |
| Cover | Knitted cover |
| Pressure relief | Yes |
| No roll-together | Yes |
| Single-sided | Yes |
| Guarantee | 5 years |
| Awards & accreditations | Handcrafted in the UK, Approved by the National Bed Federation |
| Fire resistance | Conforms to BS7177: 2008, for use at home |
| Downloads | Sealy Product Care and Guarantee |
| Size | Width | Length | Depth |
|---|---|---|---|
| Single | 90cm | 190cm | 31cm |
| Double | 135cm | 190cm | 31cm |
| King Size | 150cm | 200cm | 31cm |
| Superking | 180cm | 200cm | 31cm |
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 Double, 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 Double, 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.
Absolutely superb exactly what I was looking for the comfort is perfect for me
Verified Purchase
We ordered a sealy mattress as we had one previously on a king sized bed which was extremely comfortable. We therefore had complete faith in ordering another one for a single bed. It did not disappoint as it is ultra comfortable sealy mattresses are the best we have had over the years. The whole process was easy from ordering to delivery.we are very pleased.
Verified Purchase
I was really happy with my purchase and the service from Mattress online.
Verified Purchase
Great mattress, fantastic service, very fast delivery. Very pleased thank you very much.
Verified Purchase
Delivery was great and on time. As described and is a very good quality product. Mattress was a medium when arrived, but slowly sofened as the weeks went on. Personally ended up being too soft for me and my partner and after a few weeks we would sink into the matress and then struggle to turn over or get out of bed. Defintely don't buy this mattress if you need a bit of bounce. It does not mention on the website the mattress has a reinforced edge (even though most Sealy's do). This mattress defintely does have some kind of edge support as it is more solid towards the edges compared to the rest of the mattress which in turn makes it difficult to get out of, and means you cannot sleep right up to the edge. Cannot fault Mattress Online as they stuck to their word on their 60 night guartunee and we were able to swap to a different mattress very easily, and now have a Sealy Webber which is more suitable to our needs. Contacted them on the Saturday and new mattress delivered and old one taken away on Monday.
Verified Purchase
Excellent customer service and quality item arrived timeously.
Verified Purchase
Always had Sealy and been happy with the quality of their products
Verified Purchase
Excellent mattress just a little tall off the ground
Verified Purchase
Very comfortable well supported
Verified Purchase
Mattress good quality and well made. However, it is very firm, the 'comfort' layer is also firm foam. I previously ordered a firm mattress and exchanged it for this one as advertised as medium, very little difference. Unable to exchange again.
Verified Purchase
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Sunday: Closed
customerservice@mattressonline.co.uk