Hypnos Wheatley Supreme Wool Mattress
Mattress
Hypnos Wheatley Supreme Wool Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
33
Layers
3
Layer Details
- Comfort layer. A blend of seven British wool fleeces makes up the plush comfort layer. Wool is naturally breathable, which means it helps keep your temperature steady through the night.
- Latex layer. A generous layer of sustainably sourced natural latex sits on either side of the spring unit. It adds a responsive bounce back, so the mattress recovers quickly as you move.
- Support system. 1800 ReActivePro 10-turn pocket springs form the support core, with each spring moving independently to follow your shape. Every extra deep pocket spring is dual heat treated to keep its full height for longer.
Layer details from mattressonline.co.uk product page, September 2026.
- Serious comfort for one: At 120cm wide, a solo sleeper gets the full benefit of the wool and latex layers with space to change position freely.
- Premium build for a compact room: The UK small double is 15cm narrower than the UK double, so a box room or studio can take a Hypnos without crowding the door swing.
- Wool keeps a smaller bed cooler: Seven blended British wool fleeces regulate temperature, which matters on a narrower mattress where heat has less surface to escape from.
- Latex bounce in a tighter space: Natural latex on both sides of the spring unit recovers quickly, so turning over on a 4ft width feels easy rather than restricted.
- 1800 pocket springs across 120cm: Each ReActivePro spring moves independently, giving a solo sleeper support that follows their shape edge to edge.
- Easy to dress: 4ft is a standard UK size, so small double fitted sheets are simple to find and a standard double duvet drapes generously.
This size suits you if...
You sleep alone most nights and have outgrown a UK single, but your room can't take a bigger frame. Or you're furnishing a guest room or holiday let where couples stay occasionally and nobody sleeps there full time. It also suits a downsizer whose new bedroom won't hold the double they had before, but who still wants a substantial, natural-fill mattress.
Consider another size if...
You share the bed every night, since the UK small double is a squeeze for two long term. We'd recommend the UK double instead, which is 15cm wider and the same length; allow at least 2.6m x 2.8m for it.
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Is a small double Hypnos Wheatley Supreme Wool big enough for a couple?
For occasional nights, yes. At 120 x 190cm it works well in a guest room where couples stay now and then, and the independent pocket springs limit disturbance when one person moves. For every night sharing you'll want more width, and the UK double, 15cm wider, is the sensible step up.
What room size do I need for the Hypnos Wheatley Supreme Wool small double?
We suggest at least 2.4m x 2.8m. That leaves enough space to walk around the bed and open drawers or a wardrobe. This is our guidance rather than the manufacturer's, so measure your own room and furniture positions before ordering, especially in a loft conversion where sloping ceilings eat into usable floor.
Is the UK small double worth it over a single for one person?
If the room allows, yes. The UK small double is 30cm wider than the UK single and the same length, which is the difference between sleeping in one position and genuinely spreading out. Given the spend on a Hypnos, that extra width means you actually use more of the mattress you're paying for.
Will a small double fit where a standard double won't?
Often, and that's the main reason to choose it. The UK small double is 15cm narrower than the UK double, which can decide whether a door still clears the frame or whether there's a walkway on both sides in a box room, studio flat or loft bedroom.
What bedding fits the Hypnos Wheatley Supreme Wool in a small double?
Small double (4ft) fitted sheets, and note this is a deep mattress at 33cm, so check the sheet's depth before buying. A standard double duvet works well on top and hangs generously over the sides. 4ft is a standard UK size, so bedding and frames are easy to find on the high street.