Hypnos Cotton Origins 7 Mattress
Mattress
Hypnos Cotton Origins 7 Mattress
Size
Firmness
Construction
Depth (cm)
Layers
Layer Details
- Pocket Springs. 1,200 pocket springs form the core of the mattress, and the body-moulding nature of the spring system means the surface adapts to your shape as you move. Each spring works independently, so support goes where your body needs it.
Layer details from mattressman.co.uk product page, September 2026.
- Fits where other sizes won't: At 90cm wide, this size leaves room for a desk and wardrobe in a child's bedroom, or a walkway between two beds where siblings share.
- Full pocket spring support at the smallest size: The 1,200 pocket springs adjust to the sleeper's shape, which matters for a growing teenager as much as for an adult.
- Works in a spare room that earns its living as an office: A UK single tucks against a wall and leaves the rest of the room usable, which a UK double rarely does.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
- A long-term buy for a first flat or student room: Where a frame is provided but the mattress isn't, a quality pocket spring single is one you can take with you.
This size suits you if...
You're buying for one person: a child ready for a proper mattress, a teenager who'll use it for years, or an adult in a compact room or first flat. It also suits a spare room or study that doubles as guest space, where the 90 x 190cm footprint keeps the rest of the room usable. If you can allow at least 2.1m x 2.8m of floor space, it fits.
Consider another size if...
You're an adult who spreads out in the night, or the room can take something wider. We'd recommend the UK double instead, which is 45cm wider than the UK single and the same length; allow at least 2.6m x 2.8m for it.
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Is the Hypnos Cotton Origins 7 UK single suitable for a child?
Yes, with one caveat. The 1,200 pocket springs give supportive, body-moulding comfort that suits a growing child or teenager well, and the 90 x 190cm size is the UK standard for children's beds. It is a premium mattress though, so it makes most sense if your child will use it for many years rather than a short stopgap.
Will the UK single Hypnos Cotton Origins 7 fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames, so width and length are fine. Depth is the thing to check: raised frames need the mattress to sit below the safety rail, and Hypnos doesn't publish a depth on the listing we've sourced, so confirm it with the retailer before buying for a bunk.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which gives you room to walk alongside the bed and open drawers or wardrobe doors. That guidance is ours rather than the manufacturer's. In a loft conversion or box room, the 90cm width is usually the deciding factor in this size's favour.
Is a UK single big enough for an adult?
For one average-sized adult, yes. At 3ft x 6ft 3in it's the standard one-person size, and the pocket springs support you wherever you press into the surface. Taller adults should note the UK single is 10cm shorter than the UK king, and restless sleepers may find 90cm a little narrow, in which case sizing up is sensible.
Can I fit two singles in a guest room instead of a double?
Often, yes, and it's a flexible arrangement: two UK singles at 90 x 190cm each let guests sleep separately, and each mattress moulds independently to its sleeper thanks to the pocket springs. You'll need enough floor space for both beds plus a walkway between them, so measure carefully. Compare the retailers listed on this page for current single pricing.