Hypnos Legacy 1 Medium Small Double Mattress
The Hypnos Legacy 1 is a medium-feel pocket spring mattress, which means the springs move independently to follow your shape rather than pushing back as one unit.
- Medium feel for side & back sleepers
- Reinforced edges, no roll-off feeling
- Breathable natural cotton layer
£1,432.25
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Hypnos Legacy 1 Medium Mattress
More available sizes
Mattress details
Mattress
Hypnos Legacy 1 Medium Mattress
Size
Firmness
Medium
Construction
Depth (cm)
Layers
2
Layer Details
Certified British wool
Layers of British wool traceable to assured farms and certified to the Responsible Wool Standard. Wool helps regulate temperature and moisture, which should keep you more comfortable if you tend to run warm.
Recycled eOlus and cotton comfort layers
Beneath the wool sit comfort layers of recycled eOlus fibres and responsibly sourced cotton. They add extra cushioning between you and the springs, giving the medium feel a softer, more natural touch.
Layer details from mattressman.co.uk and solentbeds.co.uk product pages, October 2026.
Key benefits
- Room to sprawl when you sleep alone: It is 30cm wider than a UK single, which means you can turn over or sleep at a slight angle without an elbow ending up over the side.
- Sides you can actually sleep on: Retailers mention Triple Edge Protection™, suggesting reinforced sides, which matters on a 4ft mattress where you will often lie closer to the edge.
- Fits a compact double bedroom: We suggest at least 2.4m x 2.8m, so it suits a box room or loft conversion where a UK double would leave barely a walkway beside it.
- A medium feel for restless solo sleepers: The medium tension sits in the middle ground, which suits someone who moves between side and back and now has the width to do it freely.
- Simple to dress: Bedding is easy to find: buy 4ft small double fitted sheets, and a standard double duvet will cover it with a little to spare.
This size suits you if...
You sleep alone and have outgrown a single, your room can't spare the floor a UK double would swallow, or you're kitting out a guest room where couples stay for the odd weekend rather than every night.
Consider another size if...
You share the bed every night, as two adults will feel cramped on 4ft. We'd recommend the UK double instead, which gives 67.5cm each; allow at least 2.6m x 2.8m.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Hypnos Legacy 1 small double big enough for two people?
For a couple staying a night or two, yes, though it will feel snug. For nightly sharing we'd size up: the UK double is 15cm wider and gives 67.5cm each, with the same 190cm length. We suggest a room of at least 2.6m x 2.8m for the UK double.
What size bedroom do I need for a Hypnos Legacy 1 small double?
We suggest at least 2.4m x 2.8m. In a loft conversion, measure the usable floor where you can stand, not the full footprint, because a sloping ceiling can make one side of the bed hard to reach even when the mattress fits.
Hypnos Legacy 1 small double vs single: how much extra space do you get?
The UK small double is 30cm wider than the UK single and the same length. That extra width is what lets a teenager or adult sleeping alone spread out. If the room is tight, the UK single needs at least 2.1m x 2.8m by our guidance.
Is a 4ft Hypnos Legacy 1 long enough for a tall sleeper?
It measures 6ft 3in (190cm) long, the same as the UK double. If your feet already reach the end of a standard bed, the UK king is 10cm longer, though it needs a room of at least 2.7m x 2.9m by our guidance.
Is a small double Hypnos Legacy 1 a good choice for a guest room?
It suits a guest room well when visitors are mostly single, with couples only occasionally. The medium tension is a safe middle ground for guests whose preferences you don't know, and the 4ft width leaves more floor for a chest of drawers or a desk.