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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

Good all-rounder for front, side or back sleepers.

Amy Curtis

Marketing Director, Sleepeezee

What the Sleep Expert thinks...

"ActivFlex 2600 offers medium, adaptive support via dual pocket-spring layers plus ActivFlex™ spring foam that behaves like coils while contouring like memory foam. StayCool™ Gel moderates temperature, and a pillow-top of soft fibres supplies extra cushioning without losing responsiveness."

Description

Full to the brim with innovative new technology from the UK's leading sleep brand, the Sleepeezee ActivFlex Response 2600 Memory Mattress offers a blissfully supportive night's sleep in any position, plus cooling comfort and full-body cushioning.

Balanced, full-body support thanks to innovative technology

The core of this mattress houses a combination of full-size, uniquely barrel-shaped pocket springs and adaptable, fast-reacting mini comfort springs. Together, this support unit targets support to key areas of your body for intense pressure relief whilst maintaining the balanced medium feel of the mattress. Specially engineered ActivFlex™ spring foam offers even more impressive support, combining the benefits of springs and foam to target precise tension relief while moulding to your unique body shape, ensuring you feel this expert support at every point of contact.

Cooling comfort for a truly refreshing sleeping environment

A deep layer of Staycool™ gel actively draws heat away from your body, also moulding to your curves to apply a cooling sensation from head to toe. Preventing overheating and helping to regulate your temperature, this cooling comfort provides a truly refreshing sleep surface. A soft polyester comfort layer offers additional full-body cushioning, housed in a sumptuous pillow top layer, while a breathable soft knitted cover finishes the mattress in a soft, luxurious feel.

1278722-5063475049306

Features

2600 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.

Staycool™ Gel

Staycool™ Gel helps to manage moisture levels within the mattress, which aids temperature regulation so you won't feel too hot in warmer months.

ActivFlex™ Spring Foam

Designed to mimic the precise support and movement of pocket springs while moulding to your body as a foam, this innovative material combines the benefits of both.

26cm Depth

This mattress is approximately 26cm deep.

Soft Knitted Cover

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

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.

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.

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

Up to 2600 springs target support to key areas, encouraging a healthier sleeping posture
ActivFlex™ spring foam targets support like a spring but moulds to your body like a foam
Staycool™ gel draws heat away from your body for consistent cooling comfort
A sumptuous pillow top layer lets you sink just enough into the mattress surface

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 ActivFlex Response 2600 Memory Mattress

Experience blissful support and cooling comfort for a refreshing night's sleep.

2600 Pocket Springs

ActivFlex™ Spring Foam

Staycool™ Gel

26cm Depth

Firmness: Medium

£669

RRP £969

Save £300

from £669

Size

Single 3' x 6'3"

£669 RRP £969

1-2 Weeks

Small Double 4' x 6'3"

£849 RRP £1259

1-2 Weeks

Double 4'6" x 6'3"

£849 RRP £1259

1-2 Weeks

King Size 5' x 6'6"

£939 RRP £1349

Only 1 left

Super King 6' x 6'6"

£1209 RRP £1739

Only 1 left

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

£1389 RRP £2049

1-2 Weeks

FREE Delivery within Next Day

FREE delivery Thursday, 29th January
Order within hrs mins secs

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Description & Features

Balanced, full-body support thanks to innovative technology

Cooling comfort for a truly refreshing sleeping environment

2600 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.

Staycool™ Gel

Staycool™ Gel helps to manage moisture levels within the mattress, which aids temperature regulation so you won't feel too hot in warmer months.

ActivFlex™ Spring Foam

Designed to mimic the precise support and movement of pocket springs while moulding to your body as a foam, this innovative material combines the benefits of both.

26cm Depth

This mattress is approximately 26cm deep.

Soft Knitted Cover

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

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.

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.

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.

Up to 2600 springs target support to key areas, encouraging a healthier sleeping posture
ActivFlex™ spring foam targets support like a spring but moulds to your body like a foam
Staycool™ gel draws heat away from your body for consistent cooling comfort
A sumptuous pillow top layer lets you sink just enough into the mattress surface

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.

1278722-5063475049306

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

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Your order helps us plant trees

151,470+ Trees planted so far

Free, fast delivery

Award winning delivery

Mattress recycling

Planet-friendly disposals

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Sleepeezee ActivFlex Response 2600 Memory 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

Amy Curtis

What the Sleep Expert thinks...

Balanced, full-body support thanks to innovative technology

Cooling comfort for a truly refreshing sleeping environment

Additional features

Sleepeezee ActivFlex Response 2600 Memory Mattress

Balanced, full-body support thanks to innovative technology

Cooling comfort for a truly refreshing sleeping environment

Additional features

Old Mattress Removal

Need help?

Frequently paired with

More Medium 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 ActivFlex Response 2600 Memory Mattress

£

Pair it with