Hypnos Marlow Ortho Deluxe Mattress
Mattress
Hypnos Marlow Ortho Deluxe Mattress
Size
Firmness
Firm
Construction
Depth (cm)
28
Layers
4
Layer Details
- Wool comfort layer. Sustainably sourced British wool that regulates temperature, which means you're less likely to overheat on a firm, dense mattress. Wool also handles moisture well, keeping the sleep surface feeling fresh.
- Cotton comfort layer. Natural cotton fibres that wick away moisture and help regulate body temperature. Paired with the wool above, this gives a breathable natural top rather than a synthetic one.
- eOlus™ recycled fibre pad. Made from recycled plastic bottles, with a vertical structure that's firmer than normal fillings. It sits next to the spring unit, adding support while soothing pressure points.
- ReActive™ 7-turn pocket springs. Hypnos' own pocket springs, designed to actively respond to your body shape for full-body personalised support. A dual heating treatment gives the springs memory and helps them retain their height over time.
Layer details from mattressonline.co.uk product page, September 2026.
- Room to sleep apart, together: At 75cm each for two people sharing, you both get proper space on a surface that's firm enough to hold you where you settle.
- Pocket springs limit partner disturbance: The 1,200 ReActive 7-turn springs respond individually to each body, which means one of you getting up at 5am is less likely to wake the other.
- Length for taller sleepers: At 200cm, the UK king is 10cm longer than a UK double, a difference anyone over six foot feels at the ankles every night.
- Wool and cotton across a wider surface: The natural wool and cotton layers regulate temperature, so two people sharing a firm, dense mattress are less likely to trap heat between them.
- A firmness two back sleepers can agree on: This is genuinely firm rather than a marketing medium, so couples who both want solid support won't be compromising for each other.
This size suits you if...
You share the bed every night and a UK double has started to feel like a negotiation, one of you is up hours before the other and wants their exits felt less, or one partner is tall enough that 190cm beds leave feet hanging. It also suits couples where the dog has become a permanent third occupant and 135cm no longer stretches to everyone.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king, especially once wardrobes are in. We'd recommend the UK double instead, which needs around 2.6m x 2.8m and keeps the same firm feel.
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Is the Hypnos Marlow Ortho Deluxe UK king big enough for a couple?
Yes, comfortably for most. Two people sharing get 75cm each, and because the mattress is firm with 1,200 individual pocket springs, you tend to stay in your own zone rather than rolling together. If you want even more separation, the UK super king is 30cm wider, though it needs a room of at least 3m x 2.9m.
Is a UK king long enough for someone over 6ft?
At 200cm, the UK king version of the Marlow Ortho Deluxe gives a fair margin for anyone approaching or just over six foot. That's 10cm more length than the UK single, UK small double and UK double, which all stop at 190cm. For very tall sleepers, length is often the upgrade that matters more than width.
What room size do I need for the Hypnos Marlow Ortho Deluxe in a UK king?
We suggest at least 2.7m x 2.9m, and that's our guidance rather than the manufacturer's. New build master bedrooms often look generous until wardrobes and bedside tables go in, so measure the usable floor rather than the full room. If you're tight on space, the UK double needs around 2.6m x 2.8m.
Is the UK king hard to flip and turn?
It takes two people, realistically. This is a double-sided 28cm mattress designed to be flipped regularly, and at 150 x 200cm it's an awkward size for one person to handle safely. That's the trade for double-sided construction, which tends to wear more evenly over the years than a no-turn design.
Will a UK king reduce partner disturbance on this mattress?
It helps in two ways. The extra 15cm of width over a UK double means less contact in the first place, and the ReActive pocket springs adjust to each body separately, so movement on one side transfers less to the other. Partners on different schedules, where one leaves hours earlier, tend to feel the biggest improvement.