Sleepeezee ActivFlex Response 2600 Pocket Pillow Top Super King 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
£1,134
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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 for a restless partner: With 90cm each, a partner who turns over all night is further from you, and distance does more to keep you asleep than any comfort layer can.
- Space when the family piles in: A small child climbing in after a bad dream can settle in the middle, and both adults keep a usable strip of mattress either side.
- Stable edges for a fuller bed: The fully encapsulated foam border runs right round the spring unit, which means sleeping nearer the edge feels more secure when the middle is taken.
- Proportioned for a large bedroom: In a big master bedroom or a high-ceilinged period room, the UK super king fills the space properly where a smaller bed can look a little lost.
- Extra length over the UK double: The UK super king is 10cm longer than the UK double, which helps taller sleepers whose feet hang over the end of a standard bed.
This size suits you if...
You share the bed with a partner whose movement keeps waking you, your children or a large dog end up in bed with you most nights, or your bedroom comfortably clears our suggested 3m x 2.9m and you want the widest size Sleepeezee makes in this mattress.
Consider another size if...
Your bedroom is under our suggested 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
What are the dimensions of the Sleepeezee ActivFlex Response 2600 super king?
The UK super king measures 180 x 200cm, which is 6ft x 6ft 6in, and it is 27cm deep. Measure your bed frame or divan base before ordering, because a super king base needs to match those dimensions exactly to support the mattress properly.
What room size do I need for a super king pillow top mattress?
We suggest at least 3m x 2.9m for a UK super king, with around 3.5m x 3.2m feeling more comfortable once you add bedside tables. Before buying, check that the bedroom door can swing open fully and that the mattress will get round any tight landing turns on the way up.
How much more space does a super king give than a double?
The UK super king is 45cm wider and 10cm longer than the UK double. Shared between two people, that comes to 22.5cm more each: 90cm per person on the UK super king against 67.5cm each on the UK double. You feel that difference most when one of you sleeps restlessly.
Is a UK super king big enough for two adults and a child?
For a child who joins you for part of the night, the UK super king usually works, because each adult starts with 90cm of width. With a child in the middle, you will both give up some space. For a long-term arrangement involving older children, it is still a squeeze.
What size bedding fits the Sleepeezee ActivFlex Response 2600 super king?
Choose super king sheets and a 260 x 220cm duvet. The mattress is 27cm deep, so check that a fitted sheet's pocket depth is enough for 27cm before buying. Super king bedding also tends to cost more than smaller sizes, so it's sensible to factor that in.