TheraPur ActiGel Polar 2000 Combination Small Double Mattress
The TheraPur ActiGel Polar 2000 Combination Mattress pairs a graphite-infused ActiCool+ cover with zoned ActiGel foam, which means you get a cooler feel and cushioning that eases pressure.
- Graphite-infused cover for a cool feel
- Zoned foam eases pressure
- Minimises partner disturbance
£959
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TheraPur ActiGel Polar 2000 Combination Mattress
More available sizes
Mattress details
Mattress
TheraPur ActiGel Polar 2000 Combination Mattress
Size
Firmness
Medium Firm
Construction
Foam
Gel
Pocket Spring
Depth (cm)
26
Layers
4
Layer Details
ActiGel foam
Zoned ActiGel foam that TheraPur says controls heat better than traditional memory foam. It eases pressure while keeping you cooler than a standard memory foam would.
PurFibre comfort layer
A resilient PurFibre layer that adds gentle cushioning. It softens the feel a little without taking away the supportive medium-firm rating.
Platinum 3D comfort layer
A breathable layer that enhances airflow and responsiveness. You get less trapped heat and a mattress that reacts quickly when you move.
ActiCool+ cover
A graphite-infused knitted cover, described as TheraPur's coolest ever feel. It gives you a cool-feeling surface when you first lie down.
Layer details from dreams.co.uk product page, November 2026.
Key benefits
- Space to sprawl on your own: At 30cm wider than a UK single, you can turn over or lie starfished without your arm dropping off the edge.
- Kinder to a small floor plan: The UK small double is 15cm narrower than a UK double, which can be the difference between a wardrobe door opening fully and catching on the bed frame.
- Suited to warm, compact rooms: TheraPur pairs a graphite-infused cover with a breathable Platinum 3D layer, which should help in a small loft bedroom where heat tends to collect under the roof.
- Fine for guests who share: Individually wrapped pocket springs reduce the jolt when a partner moves, so a visiting couple should sleep reasonably well for a night or two.
- Bedding is easy to find: A 4ft bed is a standard UK size, so small double fitted sheets and a standard double duvet are on most high streets.
This size suits you if...
You sleep alone and have outgrown a UK single, or your bedroom is compact enough that a UK double would leave you squeezing past it. It also suits a guest room where couples stay only now and then.
Consider another size if...
Two of you will share the bed every night. We'd recommend the UK double instead, which gives 67.5cm each; allow at least 2.6m x 2.8m for it.
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FAQ's
Is the TheraPur ActiGel Polar 2000 small double big enough for two people?
For the occasional night, yes, and the pocket springs help keep one person's movement from waking the other. For nightly sharing it is tight. If you'll sleep together every night, the UK double gives 67.5cm each and is the more comfortable choice.
What size bedroom do I need for a TheraPur ActiGel Polar 2000 UK small double?
We suggest allowing at least 2.4m x 2.8m. That leaves room to walk round the bed and open drawers. If your room is close to that, measure where the door swings too, as that is often what decides it in a box room.
Will the TheraPur ActiGel Polar 2000 small double suit a teenager who has outgrown a single?
It gives 30cm more width than a UK single at the same length, so a growing teenager gets room to spread out without losing much floor. The feel is medium firm, so a lighter side sleeper may find it a little firm at first.
What bedding fits a TheraPur ActiGel Polar 2000 in a UK small double?
Use small double (4ft) fitted sheets with a standard double duvet. The mattress is 26cm deep, so check the pocket depth on fitted sheets before buying, as shallower ones may not tuck under securely.
How much narrower is the TheraPur ActiGel Polar 2000 UK small double than a UK double?
The UK small double is 15cm narrower than the UK double and the same length, measuring 4ft x 6ft 3in. In a loft conversion with a sloping ceiling, that extra width saved can mean you can stand up on both sides of the bed.