Horizon Adventurer 1000 Pocket Memory Mattress
Mattress
Horizon Adventurer 1000 Pocket Memory Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
25
Layers
3
Layer Details
- Bamboo Memory Foam. A bamboo-infused memory foam layer moulds around your shape, which means built-up pressure on hips and shoulders is eased and aches are relieved. The bamboo adds breathability, helping to dispel heat and moisture.
- High Density Foam. A durable, cushioning layer of high density foam sits beneath the memory foam, adding comfort. It also helps reduce motion transfer, so you feel less of a partner's movement.
- Pocket Springs. 1000 pocket springs respond individually to each area of your body, which means personalised support rather than a one-feel-fits-all base. They also cut down motion transfer between partners.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits where floor space is tight: At 90cm wide it leaves room for a desk, wardrobe or toy storage in a child's bedroom, or slips under the slope of a loft conversion.
- Proper support for a growing sleeper: The medium firm feel with 1000 pocket springs gives children and teens spinal support that many cheap single mattresses skip.
- A sensible spend for a guest room: The affordable build suits a bed that gets used a handful of nights a year, without leaving guests on something that feels like a compromise.
- Cooler top layer for smaller rooms: Bamboo-infused memory foam helps dispel heat and moisture, useful in compact bedrooms that warm up quickly.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
This size suits you if...
You're buying for a child or teenager and want something more supportive than a basic foam slab, you need a guest bed for a spare room that doubles as an office, or you're a single adult in a room where every centimetre of floor space matters. It also suits a student room or first flat where the frame is provided and only the mattress is yours to choose.
Consider another size if...
You're an adult sleeping in it every night and find 90cm restricts how you move, or you share the bed. The UK small double gives you 30cm more width; allow at least 2.4m x 2.8m of floor space for it.
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Will the Horizon Adventurer 1000 in a UK single fit a bunk bed?
It fits the standard UK single footprint of 90 x 190cm, which most bunk, cabin and mid sleeper frames are built around. The one thing to check is depth: at 25cm it may sit higher than the safety rail on some top bunks allows, so measure the rail height before ordering.
Is a UK single big enough for an adult?
For occasional use, such as a guest room, yes: at 90 x 190cm most adults sleep comfortably for a few nights. As an everyday bed it works for single adults who don't spread out much, although taller or restless sleepers tend to be happier moving up to the UK small double.
Is this mattress suitable for a child's room with limited space?
That's where it fits best. A 90cm wide bed leaves floor free for a desk, wardrobe and toy storage, and the medium firm pocket sprung build supports a growing back better than a thin foam pad. Two singles plus a walkway also work for siblings sharing, if the room allows.
What room size do I need for a UK single mattress?
We suggest 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. It's the easiest UK size to place, and often the only one a box room or loft slope will take.
How do I find the best price on the Horizon Adventurer 1000 single?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so what you see reflects the current cost of the UK single specifically, which is usually the cheapest size in the range to buy.