Dormeo Octasmart Premium Mattress
Mattress
Dormeo Octasmart Premium Mattress
Size
Firmness
Construction
Depth (cm)
17
Layers
4
Layer Details
- Smart performance cover. An anti-allergenic, removable cover with comfort pockets. Being removable means you can take it off for cleaning, which is handy if you suffer with allergies.
- Aerocell top layer. A layer of Aerocell foam sits directly beneath the cover. This is the comfort layer you settle into when you first lie down.
- 9cm Octaspring core. Foam springs arranged in 5 zones, which means different areas of the mattress respond differently to your body. You should feel firmer support under heavier areas like the hips and a gentler give at the shoulders.
- Ecocell base. An Ecocell foam base anchors the mattress. It provides the stable foundation the spring layer works against.
Layer details from dormeo.co.uk product page, September 2026.
- Slim enough for bunks and cabin beds: At 17cm deep, this mattress leaves clearance below the guard rail on most bunk and mid-sleeper frames, where taller hybrids often will not.
- Zoned support that grows with a teenager: The 9cm Octaspring core is arranged in 5 zones, which means firmer support under the hips as a child gets heavier through their teens.
- A footprint that leaves the room usable: At 3ft x 6ft 3in, it leaves space for a desk, wardrobe and toy storage in a child's room, or two beds in a shared one.
- Washable cover for a guest room: The removable anti-allergenic cover can be cleaned between visitors, useful in a spare room that sits unused for weeks at a time.
- No metal coils, less creak: The foam springs move quietly, which matters in a shared kids' room where one restless sleeper can wake the other.
This size suits you if...
You're buying for a child's or teenager's room where the bed shares space with a desk and storage, you need a slim mattress for a bunk, cabin or mid-sleeper frame, or you're kitting out a spare room that doubles as an office. It also works for a solo adult in a compact room, provided you like a Medium/Firm feel rather than a soft, sink-in one.
Consider another size if...
You're an adult who wants room to spread out, or a couple will ever share the bed. We'd recommend the Dormeo Octasmart Premium in a UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m for it.
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Will the Dormeo Octasmart Premium UK single fit a bunk bed?
In most cases, yes. It's 17cm deep, which is slimmer than many hybrids, so it should sit below the guard rail on standard bunk, cabin and mid-sleeper frames. Check your frame's maximum mattress depth before ordering, as it varies by manufacturer, but this is one of the easier mattresses to place in a raised bed.
What room size do I need for a UK single Dormeo Octasmart Premium?
We suggest allowing at least 2.1m x 2.8m of floor space. The mattress itself is 90 x 190cm, and that allowance leaves room to walk around and open drawers. Because the footprint is small, it also suits awkward spaces: under the slope of a loft conversion, for instance, where only a narrow strip of full-height floor exists.
Is the UK single Dormeo Octasmart Premium big enough for an adult?
For one adult sleeping alone, yes. At 3ft wide and 6ft 3in long it's the standard UK one-person size, and the 5-zone core supports adult weight at the hips and shoulders. Taller sleepers should note the 190cm length; the Dormeo Octasmart Premium in a UK king runs 10cm longer if you need it.
How much smaller is the single than the double in this mattress?
The UK single is 45cm narrower than the UK double, and the two are the same length. That extra width is the difference between a bed for one and a bed a couple can genuinely share. If the room allows at least 2.6m x 2.8m and an adult will use the bed long term, the UK double is the safer buy.
Is the Dormeo Octasmart Premium single good for a guest room?
It's a sensible fit. The narrow footprint means a spare room can hold a desk as well, or two singles with a walkway between them if you host couples or grandchildren. The removable cover washes between stays, and the Medium/Firm feel is a middle-ground choice that most occasional guests will find agreeable.