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100 Night Sleep Trial

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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

Memory Foam

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

Firmness

Medium Firm

Good for people who change sleeping position.

Amy Curtis

Marketing Director, Sleepeezee

What the Sleep Expert thinks...

"Memory Ultimate 4500 is my go-to for medium-firm, cooling support. Dual pocket-spring tiers prevent roll-together, while double-depth graphite foam diffuses heat for a fresher feel. Edge-to-edge encapsulation lets you use the whole surface without sagging."

Description

With double depth graphite memory foam that provides cooling comfort as it contours to your body shape, the Sleepeezee Memory Ultimate 4500 Pocket Mattress is anything but basic. Designed by the leaders in innovative mattresses, the Memory Ultimate 4500 is the solution to sleepless nights, preventing back pain and relieving pressure to your entire body.

Two types of incredibly supportive springs

Two types of expertly engineered pocket springs work tirelessly to support your frame in all the right places. Traditional pocket springs target support to your heaviest pressure points, such as your hips, shoulders and back, to encourage proper spinal alignment and posture control. A layer of mini comfort springs then contour more precisely to your unique curvature, offering unparalleled pressure relief no matter what position you sleep in.

Fully encapsulated side support provides a rigid frame around the edges of the mattress, preventing side sagging and allowing you to enjoy the entire sleep surface. No roll together technology enhances this, providing personalised sleeping zones that prevent you from rolling towards the middle of the bed.

Graphite memory foam keeps you cool & comfortable

A generous layer of double depth memory foam actively draws heat away from your body, enhancing air and moisture to pass through the mattress for a cleaner, fresher sleeping experience. This ingenious foam cradles your body in comfort, letting you enjoy a weightless experience with medium firm orthopaedic support.

High density polyester support and soft polyester comfort layers provide additional pressure relief and spinal control. Together, these layers are able to provide incredible support to your entire body, helping you sleep cooler and more comfortably than ever before.

1278376-5056370746425

Features

4500 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.

Soft White Fibres

Soft white fibre fillings which are made from 100% polyester. This type of mattress filling offers great recovery and is very durable, which means long-lasting comfort.

Graphite Memory Foam

A unique cell structure allows air and moisture to pass through, with Graphite helping to remove heat from the surface and disperse it away from the body to keep you cooler.

26cm Depth

This mattress is approximately 26cm deep.

Knitted Cover

This luxurious soft knitted cover is breathable, which helps to keep the sleeper at an even temperature all night long.

Graphene Infused Cover

Dissipates your body heat to keep you at a comfortable sleeping temperature all night long.

Orthopaedic Support

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

Reinforced Edges

The mattress has reinforced edges, so that the full sleep surface can be used. This means more sleeping space - which is usually lost in conventional, less edge-stable mattresses.

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.

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.

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

Pocket springs target support to direct pressure points, keeping your spine aligned and posture controlled
Mini comfort springs contour to your body shape, offering intense pressure relief
Graphite memory foam actively draws heats away from your body, as well as cradles you in comfort
Fully encapsulated sides prevent side sagging and offer sturdy support right to the edges of the mattress
Layers of high density and soft polyester provide breathable, comforting cushioning that maintain a medium firm feel
Orthopaedic support enhances pressure relief to your back, helping to prevent morning aches and pains

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.

Sleepeezee Memory Ultimate 4500 Pocket Mattress

Experience restful nights with cooling support that cradles every curve of your body.

4500 Pocket Springs

Graphite Memory Foam

Soft White Fibres

26cm Depth

Firmness: Medium Firm

£789

RRP £1099

Save £310

from £789

Size

Single 3' x 6'3"

£789 RRP £1099

1-2 Weeks

Small Double 4' x 6'3"

£989 RRP £1419

1-2 Weeks

Double 4'6" x 6'3"

£989 RRP £1419

1-2 Weeks

King Size 5' x 6'6"

£1079 RRP £1559

Only 1 left

Super King 6' x 6'6"

£1259 RRP £1849

1-2 Weeks

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

£1439 RRP £2129

1-2 Weeks

FREE Delivery within Next Day

FREE delivery Tomorrow, 20th January
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Description & Features

Two types of incredibly supportive springs

Graphite memory foam keeps you cool & comfortable

4500 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.

Soft White Fibres

Soft white fibre fillings which are made from 100% polyester. This type of mattress filling offers great recovery and is very durable, which means long-lasting comfort.

Graphite Memory Foam

A unique cell structure allows air and moisture to pass through, with Graphite helping to remove heat from the surface and disperse it away from the body to keep you cooler.

26cm Depth

This mattress is approximately 26cm deep.

Knitted Cover

This luxurious soft knitted cover is breathable, which helps to keep the sleeper at an even temperature all night long.

Graphene Infused Cover

Dissipates your body heat to keep you at a comfortable sleeping temperature all night long.

Orthopaedic Support

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

Reinforced Edges

The mattress has reinforced edges, so that the full sleep surface can be used. This means more sleeping space - which is usually lost in conventional, less edge-stable mattresses.

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.

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.

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.

Pocket springs target support to direct pressure points, keeping your spine aligned and posture controlled
Mini comfort springs contour to your body shape, offering intense pressure relief
Graphite memory foam actively draws heats away from your body, as well as cradles you in comfort
Fully encapsulated sides prevent side sagging and offer sturdy support right to the edges of the mattress
Layers of high density and soft polyester provide breathable, comforting cushioning that maintain a medium firm feel
Orthopaedic support enhances pressure relief to your back, helping to prevent morning aches and pains

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.

1278376-5056370746425

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

151,470+ Trees planted so far

Frequently paired with

More Medium Firm Mattresses

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Your order helps us plant trees

151,470+ Trees planted so far

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Award winning delivery

Mattress recycling

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Sleepeezee Memory Ultimate 4500 Pocket 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

We value your privacy

Features you'll love

Amy Curtis

What the Sleep Expert thinks...

Two types of incredibly supportive springs

Graphite memory foam keeps you cool & comfortable

Additional features

Sleepeezee Memory Ultimate 4500 Pocket Mattress

Two types of incredibly supportive springs

Graphite memory foam keeps you cool & comfortable

Additional features

Old Mattress Removal

Need help?

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 Memory Ultimate 4500 Pocket Mattress

£

Pair it with