Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top Mattress

Assessed from the specification published by mattressonline.co.uk, captured October 2026, and from regular price comparison across our UK retail partners.

The Geltex layer has an open-cell structure, which means air can move through it, so it should suit you if you tend to wake up warm. The pillow top and pressure-relieving build add cushioning at the shoulders and hips, and the medium firmness keeps that softness from tipping into sinking. Mini pocket springs sit on top of the main spring system, so the surface can respond to your shape. Sealy says there's no roll-together, which helps if you share a bed. It's handcrafted in the UK, approved by the National Bed Federation, and 100% recyclable at the end of its life. It suits most sleepers, although you should check how it feels for your weight.

Warm sleepers
The open-cell Geltex layer lets air move through the mattress, which should help if you tend to wake up feeling warm.

Side sleepers
A pillow top and pressure-relieving build add cushioning at the shoulders and hips, while the medium firmness stops that softness turning into sinking.

Couples
Sealy says there is no roll-together, so sharing a bed should feel steadier, and the range runs up to Super King for extra room.

Combination sleepers
Mini pocket springs sit above the main spring system, so the surface can respond to your shape as you move between positions through the night.

If you prefer sleeping on a firm mattress, this might not be the best choice. It's rated medium and has a pillow top, so the surface is cushioned rather than rigid. Pillow tops can't be flipped either (this one isn't flippable), so you can only rotate it. It's also a heavy mattress, at 63kg in Super King.

How firm is the Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top?

It's rated medium, with a pillow top adding cushioning. That suits most sleepers who want comfort without sinking in, although anyone after a properly firm feel may find it too soft.

What sizes does the Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top come in?

It comes in UK Single (90x190cm), Double (135x190cm), King (150x200cm) and Super King (180x200cm). Check your bed frame's internal measurements before you order.

How deep is the Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top?

It's 31cm deep. That's a fairly tall mattress, so check that your bedding fits and that the bed height suits you, especially if you have a high frame.

Does the Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top come with a trial?

Mattress Online offers a 100-night comfort trial, and the mattress has a 5-year guarantee. The trial is the retailer's own offer and requires buying a mattress protector from them, so check the terms before you order.

Is the Sealy Winslow Geltex Enhance 2400 Pocket Pillow Top good for hot sleepers?

It should help. The Geltex layer has a breathable, open-cell structure that lets air move through it. Sealy doesn't publish a temperature rating, so how cool it feels will vary from person to person.