Komfi Vitality Hybrid Pocket 1000 Small Double Mattress in a Box
The Komfi Vitality Hybrid Pocket 1000 Mattress in a Box combines independent pocket springs with breathable HD foam comfort layers, which means a medium feel that shapes to your body without trapping too much heat.
- Medium feel for most sleepers
- Pocket springs shape to your body
- Breathable foam keeps you comfortable
£395.10
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Komfi Vitality Hybrid Pocket 1000 Mattress in a Box
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Mattress details
Mattress
Komfi Vitality Hybrid Pocket 1000 Mattress in a Box
Size
Firmness
Medium
Construction
Eco-Friendly
Foam
Hybrid
Pocket Spring
Rolled
Depth (cm)
25
Layers
3
Layer Details
HD foam comfort layers
Two HD foam layers sit on top and are described as breathable. That gives you a comfortable surface with less heat build-up.
1000 pocket spring system
Independent pocket springs that shape to the contours of your body. Each spring works on its own, so the mattress supports you where you need it.
Ecofoam base
A high-density foam foundation made from 100% recycled foam offcuts. It gives the springs a supportive base and uses recycled material.
Layer details from komfi.com product page, October 2026.
Key benefits
- Room to spread out alone: At 30cm wider than the UK single, it lets a solo sleeper turn over or lie diagonally without an arm dropping off the edge.
- Fits rooms a double would crowd: It's 15cm narrower than the UK double, which can decide whether a wardrobe door swings open freely or catches the bed frame.
- Springs that respond to each sleeper: The 1000 pocket springs move independently, which means the surface responds to each guest separately on a short stay instead of dipping as one piece.
- A medium feel for a growing teenager: Medium suits most back and side sleepers, so a teenager moving up from a single gets a feel that shouldn't need changing as they get older.
- Bedding in a standard UK size: Fitted sheets for a 4ft x 6ft 3in mattress are a standard UK size, so dressing the bed shouldn't mean a hunt through specialist ranges.
This size suits you if...
You sleep alone and want more room than a single allows, or you're furnishing a compact spare room or loft conversion where couples stay only occasionally. It also fits a teenager who has outgrown a single in a bedroom that can't give up much floor.
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 the UK double.
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FAQ's
Is the Komfi Vitality Hybrid UK small double big enough for two people?
For a night or a weekend, yes, and the independent springs mean each person is supported on their own side. For nightly sharing it's a little tight. The UK double is 15cm wider and gives 67.5cm each, so couples sharing every night will usually sleep better on the UK double.
What size room do I need for a UK small double mattress?
We suggest a room of at least 2.4m x 2.8m for the Komfi Vitality Hybrid in a UK small double, which leaves space to walk round the bed and open drawers. In a loft conversion, measure where the ceiling slopes, because the floor you can stand on may be smaller than the floor you measured.
Will a small double mattress fit a standard double bed frame?
No. The UK small double is 15cm narrower than the UK double, so it would leave a gap along one side of a standard double frame and could shift about. Pair it with a frame sold as 4ft or small double so the mattress sits snugly.
Is a UK small double a good size for a teenager?
It's a common next step from a single, adding 30cm of width while staying the same length, so the bedroom loses less floor than with a UK double. The medium feel suits most back and side sleepers. A very tall teenager may find 190cm limiting; the UK king is 10cm longer, though it needs at least 2.7m x 2.9m.
What sheets fit the Komfi Vitality Hybrid small double?
Choose fitted sheets labelled small double or 4ft so they match the 120 x 190cm surface, and check the pocket depth suits a 25cm mattress so the corners stay put. A standard double duvet is the usual partner for this size.