Sleepeezee ActivFlex Response 2600 Pocket Pillow Top 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
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Sleepeezee ActivFlex Response 2600 Pocket Pillow Top Mattress
More available sizes
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
- Fits a typical bedroom: We suggest a room of at least 2.6m x 2.8m, so in most master or second bedrooms a UK double still leaves space for a wardrobe and drawers.
- Support across the full width: The 1200 traditional pocketed springs give the main support across all 135cm, so neither side of the bed is left with a weaker area.
- Steadier edges for sharing: A fully encapsulated foam border surrounds the spring unit, which matters on a UK double because with 67.5cm each you'll often lie closer to the edge.
- A cooler surface for two: Sharing a bed can feel warm, and the open-cell Staycool Gel layer is designed to help the surface feel a little cooler through the night.
- Easy to dress: Double sheets and a 200 x 200cm double duvet fit, although at 27cm deep you'll want fitted sheets with generous pockets.
This size suits you if...
You share the bed every night and your bedroom is around our suggested 2.6m x 2.8m minimum, you're kitting out a guest room that needs to take a visiting couple, or you sleep alone and like room to stretch out while the cat or dog claims the foot of the bed.
Consider another size if...
One of you sprawls, or 67.5cm each already feels tight. We'd recommend the UK super king instead, which gives 90cm each, though you should allow at least 3m x 2.9m.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
What are the dimensions of the Sleepeezee ActivFlex Response 2600 double?
The UK double is 135 x 190cm, or 4ft 6in x 6ft 3in in imperial. Like every size of this mattress it is 27cm deep, so check your fitted sheets have deep enough pockets.
Is a UK double ActivFlex Response 2600 big enough for two people?
For most couples, yes. A UK double gives 67.5cm each, which works well if you both sleep fairly still. If either of you sprawls or you're both broad across the shoulders, it can feel a little snug, and the UK super king gives 90cm each.
What size bedroom do I need for a UK double mattress?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m feeling comfortable. At that larger size you can usually fit bedside tables on both sides and still open a wardrobe without squeezing past the bed.
Should I choose the UK double or UK super king Sleepeezee ActivFlex Response 2600?
The UK double is 45cm narrower and 10cm shorter than the UK super king, giving 22.5cm less each. Choose the UK super king if you have at least 3m x 2.9m of room and want real space apart. Otherwise the UK double suits most bedrooms better.
UK double or small double for a couple sharing this mattress?
We'd point most couples to the UK double, which is 15cm wider than the UK small double and the same length. The UK small double suits a smaller room, where we suggest at least 2.4m x 2.8m, but it is better for one person or occasional sharing.