Horizon Discovery 2000 Pocket Memory Mattress
Mattress
Horizon Discovery 2000 Pocket Memory Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
26
Layers
4
Layer Details
- Removable cover. The cover can be taken off for cleaning, although dry cleaning is recommended rather than a home wash. That is slightly less convenient, but it does help keep the sleep surface fresh.
- Bamboo and memory foam comfort layers. Bamboo memory foam and high density memory foam adapt to your shape, which means pressure relief where you sink in most, at the shoulders and hips. The bamboo brings cooling breathability, useful if standard memory foam has felt warm to you before.
- 1000 mini springs. A layer of 3cm mini springs adds buoyancy, which means the mattress pushes back gently rather than letting you sink too deeply. It gives the foam layers a springier, more responsive feel.
- 1000 pocket spring unit. Steel springs sit in individual fabric casings and respond independently, so each one moves only where you press. In practice that means better contouring and less disturbance from a partner's movement.
Layer details from mattressonline.co.uk product page, September 2026.
- Grown-up support in a child's room: The 1000 pocket springs contour to a growing body just as they would an adult's, which means a teenager gets proper support rather than a budget compromise.
- Leaves room for everything else: At 90cm wide, the UK single keeps floor space free for a desk, wardrobe and toy storage in rooms where the bed can't dominate.
- Edge support where kids actually sleep: Children drift to the sides, and the 12cm foam border means the edge holds firm rather than tipping them towards the floor.
- A guest mattress adults won't grumble about: The medium firm feel and 26cm depth give visiting adults a substantial night's sleep, so a spare room single doesn't feel like a demotion.
- Cheap, easy bedding: Single sheets and a standard 135 x 200cm duvet are the most widely stocked bedding in the UK, handy when a child's bed gets changed often.
This size suits you if...
You're buying for a child or teenager moving up from a cot or small single, you're kitting out a spare room or a study that doubles as guest space, or you sleep alone in a compact room, perhaps a loft conversion or student flat, where 90cm of width is all the floor plan allows.
Consider another size if...
You're an adult who sprawls, or you find 90cm leaves your elbows hanging off the sides. The UK small double is 30cm wider at the same length; allow at least 2.4m x 2.8m of floor space for it.
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Will the Horizon Discovery 2000 single fit a bunk or mid sleeper frame?
Check your frame's maximum mattress depth first. This mattress is 26cm deep, which is more than many bunk beds allow, as safety rails need to sit well above the sleep surface. It fits a standard 90 x 190cm frame, but for raised frames measure from the base to the top of the guard rail before ordering.
Is the Horizon Discovery 2000 single suitable for a child?
Yes, for older children and teens. The medium firm feel gives a growing spine steady support, and the 1000 pocket springs respond to lighter bodies because each spring moves independently. Bamboo is naturally hypoallergenic too, a genuine plus for children with allergies. Very young children moving out of a cot may find it a lot of mattress, in the best sense.
What room size do I need for a Horizon Discovery 2000 in a UK single?
We suggest at least 2.1m x 2.8m of floor space. That leaves enough clearance to open drawers and walk past the bed. In a child's room competing with a desk and wardrobe, or a loft room where the ceiling slopes, the 90 x 190cm footprint is the easiest of any UK size to place.
Can two UK singles work for a guest room or siblings sharing?
Yes, and it's a flexible setup. Two 90 x 190cm mattresses suit guests who aren't a couple, or siblings sharing a room, provided you leave a walkway between the beds. The pocket springs mean each sleeper's movement stays on their own mattress, though in separate beds that's already solved. Budget more floor space than the 2.1m x 2.8m single-bed minimum.
Is a single big enough for an adult on this mattress?
For most solo adults, yes. At 90cm wide you get the full medium firm feel, and the 12cm foam border means you can use the whole width without the edge giving way. Taller or broader adults, or anyone who moves around a lot at night, may prefer the UK small double, which is 30cm wider and the same length.