Hypnos Imperial Ortho Supreme Mattress
Mattress
Hypnos Imperial Ortho Supreme Mattress
Size
Firmness
Construction
Depth (cm)
28
Layers
5
Layer Details
- Cover. An unbleached cotton cover that achieves fire resistance without FR chemicals, which means a cleaner, fresher sleep surface. It feels natural rather than synthetic against your bedding.
- eOlus™ Fibres. Resilient eOlus fibres sit just beneath the cover, offering body support while letting air and moisture pass through easily. In practice, that means less heat building up around you overnight.
- RWS Certified British Wool. Layers of British wool, certified by the Responsible Wool Standard, cushion your whole body so you dip into the surface just the right amount. Wool also insulates naturally, keeping you warmer in winter.
- Sustainably Sourced Cotton. Responsibly sourced cotton wicks away excess moisture, which means the surface stays feeling fresh through the night. It works alongside the wool to regulate temperature all year round.
- ReActive™ 7-Turn Pocket Springs. A support unit of ReActive 7-turn pocket springs, each moving independently to align your spine as you change position. That translates to targeted support at your hips and shoulders rather than a one-feel-fits-all base.
Layer details from mattressnextday.co.uk product page, September 2026.
- A shared size for ordinary rooms: At 135 x 190cm, it leaves space for a wardrobe and drawers where the UK king, 15cm wider and 10cm longer, might not.
- Firm support for both of you: The ReActive 7-turn pocket springs move independently, which means one of you turning over doesn't disturb the other's side of a shared bed.
- Room for bedside tables: In a room at or above our suggested 2.6m x 2.8m minimum, a UK double usually still allows a table on each side.
- Easy to dress: Standard double sheets and a 200 x 200cm double duvet are stocked everywhere, handy if you're furnishing several rooms at once.
- Natural fillings at a sensible footprint: Wool and cotton regulate temperature well, useful when two bodies share 135cm of width and heat builds faster than it would sleeping alone.
This size suits you if...
You share the bed every night and your bedroom is a typical UK size, where a UK king would leave little walking room. Or you sleep alone, like a firm feel, and want space to spread out, perhaps with a dog or cat claiming a corner. It also suits a guest room that regularly hosts visiting couples who'd appreciate proper support.
Consider another size if...
You both sleep on 67.5cm each here, and restless couples often find that tight. If your room allows at least 2.7m x 2.9m, we'd recommend the UK king instead, which is 15cm wider and 10cm longer.
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Is the Hypnos Imperial Ortho Supreme in a UK double big enough for two adults?
For most settled couples, yes. You get 67.5cm each for two people sharing, which is fine if you sleep fairly still. The independent pocket springs help too, limiting how much movement travels across the bed. If either of you is broad shouldered or restless, sizing up to the UK king is the safer call.
What room size do I need for the Hypnos Imperial Ortho Supreme UK double?
We suggest at least 2.6m x 2.8m, which is our own guidance rather than a Hypnos figure. That allows the door to open fully and leaves room to walk round the bed. In a room that size you should still fit bedside tables on both sides, though a large wardrobe may squeeze things.
Should I buy this Hypnos in a UK double or a UK small double?
The UK double is 15cm wider than the UK small double, and the two are the same length. For couples, that extra width matters on a firm mattress like this one, where you don't sink towards the middle. We'd only suggest the UK small double for a solo sleeper in a tight room; allow at least 2.4m x 2.8m for it.
Will the UK double Hypnos Imperial Ortho Supreme fit up a narrow staircase?
It's a traditional pocket sprung mattress with natural fillings, so it doesn't arrive rolled in a box and can't be bent round tight turns. At 4ft 6in x 6ft 3in it manages most stairs, but if you're in an older terrace with a turning staircase or a tight new build landing, measure the awkward point first and check Hypnos's own delivery guidance.
Where can I compare prices for the Hypnos Imperial Ortho Supreme in a UK double?
Use the comparison table on this page. The prices shown here are updated as retailers change them, so it's more reliable than checking shops one by one. Availability does shift between sizes, so if the UK double looks thin on stock, it's worth revisiting rather than assuming it's discontinued.