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Features you'll love

Support System

Pocket Springs

Individually pocketed springs work to give you support exactly where you need it.

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.

Amy Curtis

Marketing Director, Sleepeezee

What the Sleep Expert thinks...

"Our most supportive gel hybrid. If you want maximum stability and cooler comfort, this is the flagship. The dense spring unit controls motion brilliantly and the stacked Staycool™ gel layers diffuse heat fast. Firm, precise and reassuring—especially good for front or heavier sleepers."

Description

The Sleepeezee Gel 4000 Pocket Hybrid Ortho Mattress, from the Eezee collection, is a truly supportive and indulgent option, perfect if you're looking for a slightly firmer feel and cooling comfort. With a very high pocket spring count and multiple layers of Staycool™ gel, it delivers advanced, refreshing pressure relief for a cooler, better-aligned night’s sleep.

Enhanced support for stable, well-aligned sleep

At the core of the Gel 4000 mattress is an advanced 4000-pocket spring system, made up of 1000 traditional pocket springs combined with 3000 mini comfort springs. This dual-layer orthopaedic spring construction responds independently to your movements, helping distribute weight evenly, reduce motion transfer, provide consistent full-body support, and reduce the risk of backache.

Cooling comfort with advanced pressure relief

Above the springs, multiple layers of profiled Staycool™ gel gently contour to your body while dispersing excess heat for impressive temperature-regulation. Soft polyester layers add comfort without compromising support, and high-density polyester maintains the mattress's structure and durability. For added indulgence, the Gel 4000 is finished with a plush pillow-top layer, acting as a stitched-in mattress topper for hotel-style luxury.

Designed for easy care and long-lasting performance

The Sleepeezee Gel 4000 Pocket Hybrid Ortho Mattress is single-sided, meaning it's super easy to look after and doesn't need flipping; just rotate it seasonally to keep it at its best. Made in the UK and backed by a 10-year guarantee, it’s a premium, practical choice for those seeking long-term support with cooling comfort built in.

1278947-5063475234245

Features

4000 Pocket Springs

Pocket springs are springs mounted in their own separate fabric pockets, meaning they work completely independently of one another and can provide your body with better pressure relieving support.

High Density Polyester

With excellent rebound and recovery properties, this specialist material provides additional full-body support, preventing compression and letting you enjoy personalised comfort night after night.

Profiled Staycool™ Gel

Supportive, breathable gel that draws heat away while contouring your body for pressure relief and responsive support.

35cm Depth

This mattress is approximately 35cm deep.

Soft Knitted Cover

Highly breathable and soft to the touch, this cover finishes the mattress with a truly luxurious feel.

Orthopaedic Support

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

Air Vents

Vents which allow air to flow in and out of the mattress are mounted on the sides. These vents help to keep the air within fresh and cool.

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.

Vegan Friendly

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

Flat Mattress

This mattress will arrive flat, not rolled and boxed.

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

4000 pocket springs deliver advanced, responsive support
Multiple Staycool™ gel layers help regulate temperature through the night
Supportive pressure relief without excessive sink
Independent springs reduce motion transfer for undisturbed sleep
Plush pillow top with a soft knitted cover balances comfort and control
Support-focused design helps promote natural spinal alignment
Single-sided mattress — no turning required, just rotate
Made in the UK with a 10-year guarantee

Expert Approved

Lowest Price Promise!

Shop with confidence. We monitor our competitors' price every 24 hours to ensure you're always getting the best deal. As the 2025–2026 'Online Bed Retailer of the Year', we pair unbeatable value with award-winning next-day delivery.

Sleepeezee Gel 4000 Pocket Hybrid Ortho Mattress

5.0 out of 5

5 Star (2)

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1 Star (0)

Experience restful nights with unmatched support and cooling comfort for a better sleep.

4000 Pocket Springs

High Density Polyester

Profiled Staycool™ Gel

35cm Depth

Firmness: Medium Firm

£849

RRP £1159

Save £310

from £849

Lowest Price Promise!

Size

Single 3' x 6'3"

£639 RRP £869

1-2 Weeks

Double 4'6" x 6'3"

£779 RRP £1069

1-2 Weeks

King Size 5' x 6'6"

£849 RRP £1159

In stock

Super King 6' x 6'6"

£1059 RRP £1449

Only 3 left

Super King Zip & Link 6' x 6'6"

£1299 RRP £1779

1-2 Weeks

FREE Delivery within Next Day Estimated delivery from

FREE delivery Monday, 6th April
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Description & Features

Enhanced support for stable, well-aligned sleep

Cooling comfort with advanced pressure relief

Designed for easy care and long-lasting performance

4000 Pocket Springs

Pocket springs are springs mounted in their own separate fabric pockets, meaning they work completely independently of one another and can provide your body with better pressure relieving support.

High Density Polyester

With excellent rebound and recovery properties, this specialist material provides additional full-body support, preventing compression and letting you enjoy personalised comfort night after night.

Profiled Staycool™ Gel

Supportive, breathable gel that draws heat away while contouring your body for pressure relief and responsive support.

35cm Depth

This mattress is approximately 35cm deep.

Soft Knitted Cover

Highly breathable and soft to the touch, this cover finishes the mattress with a truly luxurious feel.

Orthopaedic Support

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

Air Vents

Vents which allow air to flow in and out of the mattress are mounted on the sides. These vents help to keep the air within fresh and cool.

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.

Vegan Friendly

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

Flat Mattress

This mattress will arrive flat, not rolled and boxed.

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.

4000 pocket springs deliver advanced, responsive support
Multiple Staycool™ gel layers help regulate temperature through the night
Supportive pressure relief without excessive sink
Independent springs reduce motion transfer for undisturbed sleep
Plush pillow top with a soft knitted cover balances comfort and control
Support-focused design helps promote natural spinal alignment
Single-sided mattress — no turning required, just rotate
Made in the UK with a 10-year guarantee

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.

1278947-5063475234245

Sleepeezee 10 Year Guarantee

Sleepeezee 10 Year Guarantee

Sleepeezee are confident that all of their beds and mattresses are made to the highest standards. Therefore they offer a 10 year guarantee across their entire range of mattresses and divan bed sets.

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

Frequently paired with

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Your order helps us plant trees

151,670+ Trees planted so far

Free, fast delivery

Award winning delivery

Mattress recycling

Planet-friendly disposals

0% Interest finance

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Sleepeezee Gel 4000 Pocket Hybrid Ortho Mattress

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Coolflex® Cool Gel Memory Foam Mattress Topper

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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

Amy Curtis

What the Sleep Expert thinks...

Enhanced support for stable, well-aligned sleep

Cooling comfort with advanced pressure relief

Designed for easy care and long-lasting performance

Additional features

Sleepeezee Gel 4000 Pocket Hybrid Ortho Mattress

Description & Features

Enhanced support for stable, well-aligned sleep

Cooling comfort with advanced pressure relief

Designed for easy care and long-lasting performance

Additional features

Sleepeezee 10 Year Guarantee

100 Night Sleep Trial

Delivery & Recycling

Sustainability

Need help?

Rated Excellent

Frequently paired with

More Medium Firm Mattresses

More with Pocket Springs

More from Sleepeezee

You might also like

More to explore

Your order helps us plant trees

Free, fast delivery

Mattress recycling

0% Interest finance

Sleepeezee Gel 4000 Pocket Hybrid Ortho Mattress

£

Pair it with