Hypnos Cotton Comfort Mattress
Mattress
Hypnos Cotton Comfort Mattress
Size
Firmness
Construction
Depth (cm)
26
Layers
3
Layer Details
- Cover. A breathable Belgian damask fabric top cover, which means air can move through the sleep surface rather than being trapped against you. That helps keep the mattress feeling fresh and a little cooler.
- Comfort Fillings. Soft cotton combined with Hypnos' eOlus fibres for total body cushioning. In practice this gives a gentle, natural-feeling surface that contours without the slow sink of memory foam.
- Support System. ReActive 6-Turn pocket springs, with six turns per spring, engineered for total spinal and body support. Each spring moves independently, which means less partner disturbance and support that follows the shape of your body.
Layer details from mattressnextday.co.uk product page, September 2026.
- Real stretching room for one: The UK small double is 30cm wider than the UK single, which means a solo sleeper can roll over or starfish without an elbow off the edge.
- Fits where a double won't: At 15cm narrower than the UK double, it can be the difference between a door that clears the bed frame and one that doesn't.
- Cotton comfort in a compact footprint: You get the same breathable Belgian damask cover and cotton fillings as the larger sizes, so a smaller room doesn't mean a warmer, cheaper-feeling night.
- Springs that work for occasional sharing: The ReActive 6-Turn pocket springs move independently, so when a couple does share for a night or two, one person turning over disturbs the other less.
- Standard 4ft size, easy to dress: Small double is a standard UK size, which means fitted sheets and frames are straightforward to find rather than a specialist order.
This size suits you if...
You're a solo adult who wants space to spread out but your bedroom, a box room, studio or loft conversion, can't take a full double. Or you're furnishing a guest room where couples stay occasionally rather than nightly. It also suits a teenager who has outgrown a single in a room that can't lose much more floor space. Allow at least 2.4m x 2.8m of room.
Consider another size if...
You share the bed every night; at 120cm wide, the UK small double is tight for two long term. We'd recommend the UK double instead, and suggest a room of at least 2.6m x 2.8m for it.
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Is a small double Hypnos Cotton Comfort big enough for a couple?
For occasional nights, yes. The independent pocket springs help limit partner disturbance, so guests sharing for a weekend will be comfortable enough. For every night, 120cm of width is tight for two adults, and we'd point regular couples at the UK double, which is 15cm wider at the same length.
What size room do I need for a small double mattress?
We suggest at least 2.4m x 2.8m. That leaves enough space to walk round the bed and open drawers or a wardrobe without shuffling sideways. If your room is smaller than that, measure carefully before buying, because the frame will add a little to the mattress footprint.
How much wider is a small double than a single?
The UK small double is 30cm wider than the UK single, and the two are the same length at 190cm. That extra width is the whole point of the size: enough room for a solo sleeper to change position freely, without stepping up to a footprint your room can't take.
Will my double bedding fit a UK small double?
Fitted sheets need to be small double (4ft) specifically, as standard double sheets will sit loose on the 120cm width. A standard double duvet works fine on top, with a generous overhang on each side, which many solo sleepers rather like.
How do prices compare across sizes for the Hypnos Cotton Comfort?
Hypnos prices climb noticeably as sizes get larger, so the UK small double sits towards the more affordable end of the range. Prices change often, so compare the retailers listed on this page; the figures shown here are updated as retailers change them.