Hypnos Legacy 2 Medium Single Mattress
The Hypnos Legacy 2 Medium is a pocket spring mattress with a medium feel, with springs that move independently for less disturbance when a partner shifts about in the night.
- Medium feel suits most sleepers
- Spreads your weight evenly
- From a well-known heritage maker
£1,299.65
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Hypnos Legacy 2 Medium Mattress
More available sizes
Mattress details
Mattress
Hypnos Legacy 2 Medium Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Depth (cm)
Layers
4
Layer Details
Belgian damask cover
A Belgian damask viscose sleep surface that is naturally fire resistant and free of FR chemicals. If you'd rather avoid added flame-retardant chemicals against your skin, that's a plus.
Upholstery layers
Himalayan Allo, silk-like Kapok, cotton and recycled eOlus fibres enclose the spring system. These natural fibres sit between you and the springs, giving a softer, more cushioned feel on top of the support below.
ReActivePro pocket springs
7-turn ReActivePro pocket springs with Triple Edge Protection. Each spring works on its own, so the mattress can respond to different parts of your body, and the protected edges are there to help the sides hold their shape.
British wool layer
The final layer is 6kg of certified British wool (RWS) that acts as a temperature regulator. It helps manage heat through the night, so you're less likely to feel too warm or too cool.
Layer details from mattressman.co.uk and hypnosbeds.com product pages, October 2026.
Key benefits
- A small footprint for tight rooms: At 90cm wide, this size leaves floor space free in a child's room or a loft conversion where only a narrow footprint fits under the slope.
- Premium support that lasts through the teenage years: Hypnos builds at the higher end of the market, so a growing child or teenager gets a mattress that should still support them properly years from now.
- A medium feel that suits a changing sleeper: The medium firmness works for most sleeping positions, useful when the person on it is a child whose habits will change or a rotating cast of guests.
- Pocket springs sized for one: The pocket sprung core responds to the individual sleeper's weight, which means even distribution rather than the whole surface flexing as one.
- Cheap, easy bedding: Single sheets and duvets are the most widely stocked of any size, so replacing bedding for a spare room or student flat stays simple.
- A guest bed that feels like a treat: In a spare room that doubles as an office, a single keeps the desk usable while giving overnight guests something noticeably better than the usual afterthought.
This size suits you if...
You're buying for a child or teenager and want a mattress that will outlast a cheaper one, you need a proper guest bed in a spare room that also holds a desk, or you're a single adult in a compact room, a student flat or a first flat where the frame came with the tenancy but the mattress didn't.
Consider another size if...
You're an adult who spreads out in the night, or two of you will share the bed. The UK single is 45cm narrower than the UK double, and for the UK double we'd recommend allowing at least 2.6m x 2.8m of floor space.
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FAQ's
What size is the Hypnos Legacy 2 in a UK single?
The UK single measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard one-person size in the UK, so it fits standard single bed frames, single fitted sheets and a single duvet at 135 x 200cm without any hunting for unusual bedding.
Is the Hypnos Legacy 2 single a good choice for a child's bedroom?
Yes, with a caveat on budget. The medium feel suits most children and teens, and a Hypnos build should last well beyond the point a cheaper mattress sags. If the bed is competing with a wardrobe, desk and toy storage, the 90cm width keeps the rest of the room usable.
Will the Hypnos Legacy 2 single fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. Raised frames often set a maximum mattress depth for safety rails, and retailers publish limited construction detail for this model, so check the depth with the retailer against your frame's limit before ordering.
How much room do I need for a single Hypnos Legacy 2?
We suggest allowing at least 2.1m x 2.8m of floor space, which gives you room to walk alongside the bed and open drawers or a wardrobe. That's our own guidance rather than the manufacturer's, and it makes the UK single a realistic fit for box rooms and lofts.
Is a UK single big enough for an adult?
For one average-sized adult who sleeps fairly still, yes. If you spread out or change position a lot, the 90cm width can feel restrictive night after night. The UK single is 30cm narrower than the UK small double, which is the usual step up for a solo adult, and both are the same length.