Sleepeezee Centurial 01 4500 Pocket Small Double Mattress
The Sleepeezee Centurial 01 4500 is a medium pocket spring mattress with natural fillings of British wool and alpaca, finished in a soft woven viscose cover.
- Wool & alpaca keep you cooler
- Mini springs ease shoulders & hips
- Handcrafted in the UK
£1,499
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 Centurial 01 4500 Pocket Mattress
More available sizes
Mattress details
Mattress
Sleepeezee Centurial 01 4500 Pocket Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Wool
Depth (cm)
26
Layers
4
Layer Details
Cover
A soft, woven viscose cover sits on top. Viscose is smooth and breathable, so the surface feels gentle against bedding rather than clammy.
Comfort fillings
Beneath the cover sit generous natural fillings of British wool and alpaca wool. Wool helps regulate temperature, which means it can feel warmer in winter and cooler in summer than synthetic fillings.
Mini Pocket Springs
A layer of small, individually cased springs adds comfort close to the surface. These respond to lighter pressure, giving soothing relief at the shoulders and hips.
Pocket Springs
The main support comes from individual springs encased in cloth pockets. Each one adapts to movement separately, so support is distributed to each part of your body rather than the whole bed tilting when your partner turns over.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Space to sprawl on your own: The UK small double is 30cm wider than the UK single, which means you can sleep diagonally or starfish without an arm hanging off the side.
- Leaves floor in a tight room: Being 15cm narrower than the UK double, it can be the difference between a wardrobe door opening fully and catching on the bed frame.
- Calm for the odd couple's stay: Each pocket spring moves independently, so when a visiting couple share the UK small double, one person turning over disturbs the other a little less.
- Easy to kit out: At 4ft x 6ft 3in it is a standard UK size, so you are unlikely to struggle finding a frame, headboard or fitted sheets to match.
- Natural fillings suit solo warm sleepers: The wool and alpaca layers breathe well, which means a single warm sleeper on a UK small double is less likely to wake up hot than on a foam top.
This size suits you if...
You sleep alone but feel cramped on a single, your room is a loft conversion or a smaller space after downsizing where a full double would swallow the floor, or a couple only stays over now and then.
Consider another size if...
You share the bed with a partner 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.
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
Will the Sleepeezee Centurial 01 4500 small double fit in a loft conversion?
It often suits one, because the UK small double measures 120 x 190cm and we suggest a room of at least 2.4m x 2.8m. In a loft conversion, measure the headroom where you will actually stand to get in and out of bed, since a sloping ceiling can matter more than floor area.
Is a UK small double Sleepeezee Centurial 01 4500 big enough for one adult?
For most solo sleepers, yes. It is 30cm wider than the UK single, which gives room to move about freely. The length is the same as the UK single, though, so if you are tall and your feet already reach the end, the UK king is 10cm longer.
Can two people share a Sleepeezee Centurial 01 4500 in a UK small double?
For occasional stays, such as guests in a spare room, it works reasonably well, and the independent pocket springs help limit disturbance. For a couple sleeping together every night it will feel snug. The UK double gives 67.5cm each for two sharing and suits nightly use better.
What bed frame fits a 4ft Sleepeezee Centurial 01 4500 mattress?
Look for a frame or divan sold as a UK small double, at 4ft x 6ft 3in or 120 x 190cm. A UK double frame is 15cm wider and would leave a gap. The mattress is 26cm deep, so check your chosen headboard sits high enough above it.
Should I get a UK small double or UK double Centurial 01 4500 when downsizing?
Go by the new room, not your old one. We suggest at least 2.4m x 2.8m for the UK small double and 2.6m x 2.8m for the UK double. If you now sleep alone and the room is tight, the UK small double keeps more floor clear.