Dormeo Octasmart Premium Plus Mattress
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Mattress
Dormeo Octasmart Premium Plus Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Memory Foam
Depth (cm)
Layers
2
Layer Details
Memory foam top layer
A pressure-relieving memory foam layer that moulds to your shape, cradling your body as you settle in. In practice this means less pressure on hips and shoulders, which side sleepers in particular tend to notice.
Octasprings
A layer of patented honeycomb-shaped Octasprings that move three-dimensionally, adapting to the contours of your body. Because they are made of foam rather than metal, you get spring-like responsiveness without the noise or firmness of a traditional coil.
Layer details from dormeo.co.uk product page, September 2026.
- Fits compact rooms: At 90cm wide it needs only 2.1m x 2.8m of floor space by our guidance, so a child's room can still hold a wardrobe, desk and toy storage.
- Contouring for lighter sleepers: The memory foam top moulds to lighter bodies, which means children and teens get pressure relief that a firmer sprung single often can't deliver.
- Quiet by design: The Octasprings are foam rather than metal, so there's no creak or squeak, useful when two siblings share a room and one sleeps lightly.
- Practical for spare rooms: A single leaves space for a desk, so a spare room can work as an office all week and still sleep a guest comfortably.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, the most widely stocked and affordable bedding of any UK size.
This size suits you if...
You're buying for a child or teenager's room where floor space is tight, you're a solo adult sleeper happy with the standard 90cm width, or you're kitting out a spare room or first flat where the bed shares space with a desk. The medium, contouring feel suits lighter sleepers especially well, since the memory foam responds to less body weight than a firm sprung mattress would.
Consider another size if...
You're an adult who spreads out at night, or the bed will ever sleep two. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m of floor space for it.
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What size is the Dormeo Octasmart Premium Plus UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK single footprint, so it fits standard single frames, single fitted sheets and a 135 x 200cm single duvet without any hunting for unusual bedding.
Is the UK single big enough for an adult?
For one adult, usually yes. At 90cm wide it's the standard solo size, and the memory foam top with Octasprings underneath gives a responsive, contouring feel across the full surface. Taller or broader sleepers who like to spread out may prefer the UK double, which is 45cm wider and the same length.
Will the Dormeo Octasmart Premium Plus single fit a bunk or mid sleeper?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. Raised frames often have a maximum mattress depth for safety rails, though, so check your frame's guidance against the depth listed on Dormeo's product page before ordering.
How much floor space does a UK single need?
We suggest allowing at least 2.1m x 2.8m, which gives room to walk alongside the bed and open drawers or a wardrobe. That modest footprint is why the UK single works under loft slopes and in rooms where two beds need to fit with a walkway between them.
Should I get the single or the double for a teenager?
If the room allows it, the UK double gives a growing teen 45cm more width at the same length, and we suggest at least 2.6m x 2.8m of floor space for it. In a smaller room, the UK single still leaves space for a desk and storage, which often matters more day to day.