Hypnos Marlow Ortho Deluxe Mattress
Mattress
Hypnos Marlow Ortho Deluxe Mattress
Size
Firmness
Firm
Construction
Depth (cm)
28
Layers
4
Layer Details
- Wool comfort layer. Sustainably sourced British wool that regulates temperature, which means you're less likely to overheat on a firm, dense mattress. Wool also handles moisture well, keeping the sleep surface feeling fresh.
- Cotton comfort layer. Natural cotton fibres that wick away moisture and help regulate body temperature. Paired with the wool above, this gives a breathable natural top rather than a synthetic one.
- eOlus™ recycled fibre pad. Made from recycled plastic bottles, with a vertical structure that's firmer than normal fillings. It sits next to the spring unit, adding support while soothing pressure points.
- ReActive™ 7-turn pocket springs. Hypnos' own pocket springs, designed to actively respond to your body shape for full-body personalised support. A dual heating treatment gives the springs memory and helps them retain their height over time.
Layer details from mattressonline.co.uk product page, September 2026.
- Real stretching room for one: At 120cm wide, the UK small double is 30cm wider than the UK single, which means a solo sleeper can shift position freely on the firm surface.
- Fits rooms a double crowds out: It's 15cm narrower than the UK double, so box rooms, studio flats and loft conversions keep a walkway where a bigger bed wouldn't.
- Firm support in a compact footprint: The 1,200 ReActive 7-turn pocket springs adjust to your body shape, which means solid back and front support without needing king-size floor space.
- Natural layers help a smaller room: Wool and cotton comfort layers regulate temperature, useful in compact bedrooms where a firm, dense mattress could otherwise feel warm.
- Standard 4ft size, easy to dress: Small double is a standard UK size, so frames and fitted sheets are straightforward to find, and a standard double duvet works fine.
This size suits you if...
You sleep alone and have outgrown a UK single but your room can't spare the width of a full double, you're furnishing a loft conversion or box room where every centimetre of walkway matters, or you're kitting out a guest room or holiday let where couples stay occasionally rather than nightly and you want proper firm support for them.
Consider another size if...
You share the bed every night, since 120cm is a squeeze for two adults 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 Marlow Ortho Deluxe big enough for a couple?
For occasional nights, yes, which makes it a sensible guest room choice. At 120cm wide it gives two adults noticeably less space each than a UK double, and on a firm mattress like this you feel a partner's edge of the bed more. Couples sharing every night would be better sizing up.
What room size do I need for a small double mattress?
We suggest a room of at least 2.4m x 2.8m for the UK small double, which leaves enough space to walk round the bed and open drawers. That's our own guidance rather than the manufacturer's. In a loft conversion or box room, this size often fits where a UK double simply won't.
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 this size: a solo adult, or a teenager who has outgrown a single, gets real room to spread out without the footprint of a full double.
Is the Hypnos Marlow Ortho Deluxe easy to turn in a small room?
This mattress is double-sided and needs flipping regularly, and at 28cm deep it's a substantial thing to handle. The small double's 120cm width does make it slightly more manageable than the larger sizes, but in a tight room you'll want to clear space, and ideally a second pair of hands.
Where can I buy the small double Hypnos Marlow Ortho Deluxe?
Availability varies by size, so the best approach is to compare the retailers listed on this page. The prices shown here are updated as retailers change them, which matters because a UK small double is stocked less widely than the UK single or UK double in many ranges.