Sleepeezee ActivFlex Response 2600 Pocket Pillow Top Small Double Mattress
The Sleepeezee ActivFlex Response 2600 Pocket Pillow Top Mattress combines a Staycool Gel cooling layer with a pillow top and two layers of pocket springs, which means a cushioned, medium-feel surface that stays fresher.
- Cushioned medium feel
- Staycool Gel keeps you cooler
- Handcrafted in the UK
£838
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Sleepeezee ActivFlex Response 2600 Pocket Pillow Top Mattress
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Mattress details
Mattress
Sleepeezee ActivFlex Response 2600 Pocket Pillow Top Mattress
Size
Firmness
Medium
Construction
Foam
Gel
Pocket Spring
Depth (cm)
27
Layers
8
Layer Details
Soft knitted cover
A soft knitted cover finishes the top of the mattress. It gives you a gentle surface to lie on.
Soft polyester comfort layer
A soft polyester filling sits under the cover. It adds cushioning at the surface, which is part of the pillow top feel.
Staycool Gel
A cooling comfort foam with an open-cell structure. It's there to help the mattress feel cooler while still cushioning you.
ActivFlex spring foam
A profiled, responsive support foam layer. It adds support under the comfort layers, so you aren't sinking straight through.
1400 mini comfort springs
Mini pocket springs sit in the comfort layer. They respond to your body in smaller areas, which adds to the cushioned feel.
1200 traditional pocketed springs
Traditional pocket springs form the core of the mattress. They give the main support underneath you.
Fully encapsulated spring unit
The spring unit sits inside a fully encapsulated foam border. That gives the edges a more stable feel.
Foundation support pad
A foundation pad sits at the base as the foundation for the layers above. It separates the springs from your bed base.
Layer details from linthorpebeds.co.uk product page, October 2026.
Key benefits
- Room to spread out on your own: It is 30cm wider than the UK single and the same length, so a solo sleeper can turn and stretch without an elbow ending up over the edge.
- Kinder to compact rooms: Being 15cm narrower than the UK double, it can leave the clearance you need for a door to swing open or a bedside table to fit beside it.
- Cushioned feel for one sleeper: The pillow top and Staycool Gel layer give a medium feel with a little give at the surface, which suits someone sleeping alone who dislikes a hard bed.
- Steadier edges where they count: A fully encapsulated foam border wraps the springs, which helps on a narrower bed where you are more likely to sit or sleep near the edge.
- Straightforward to dress: 4ft is a standard UK size, so small double fitted sheets and frames are easy to find, although you should check sheet pockets suit the 27cm depth.
This size suits you if...
You sleep alone and have outgrown a single, your bedroom is compact but still gives at least the 2.4m x 2.8m we suggest, or you're furnishing a guest room where a couple stays now and then rather than every night.
Consider another size if...
You and a partner share the bed every night. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; allow at least 2.6m x 2.8m for it.
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FAQ's
Is the Sleepeezee ActivFlex Response 2600 small double big enough for two people?
For occasional stays, yes, which makes it a reasonable guest room choice. For two adults sharing every night it feels tight, and the pillow top's cushioning won't create extra width. If you share nightly, the UK double gives 67.5cm each and we suggest a room of at least 2.6m x 2.8m.
What size room do I need for a UK small double mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves space to walk around the bed and make it without squeezing past furniture. If your room is close to that, measure where the door swings before ordering, because that is often what decides the fit.
How much wider is a UK small double than a single?
A UK small double is 30cm wider than a UK single, and both are 190cm long. That extra width is the main reason solo sleepers move up: you get room to roll over and spread out without needing more length, and we suggest at least 2.4m x 2.8m against 2.1m x 2.8m for a single.
Is the ActivFlex Response 2600 small double long enough for a tall person?
The UK small double is 190cm long (6ft 3in), the same length as the UK single and UK double. If you are tall and find your feet near the end, the UK king is 10cm longer, though it needs a room of at least 2.7m x 2.9m.
What bedding fits a Sleepeezee UK small double mattress?
Small double (4ft) fitted sheets are the right size for a UK small double, and a standard double duvet works well over it. This mattress is 27cm deep, so check the fitted sheet's pocket depth before buying, as shallower sheets can pull off the corners.