Mlily Bamboo+ Ortho Memory 800 Pocket King Size Mattress
The Mlily Bamboo+ Ortho Memory 800 Pocket is a firm hybrid mattress, which means it pairs 800 pocket springs with layers of memory foam for a supportive, cushioned feel.
- Firm support for back & front sleepers
- Springs adapt to how you move
- Breathable bamboo charcoal top
£425
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Mlily Bamboo+ Ortho Memory 800 Pocket Mattress
More available sizes
Mattress details
Mattress
Mlily Bamboo+ Ortho Memory 800 Pocket Mattress
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Orthopaedic
Depth (cm)
23
Layers
5
Layer Details
Bamboo Charcoal Memory Foam
A 2cm top layer with air channels that let air flow through the mattress. The bamboo charcoal also absorbs moisture, which helps regulate temperature through the night.
Flex Comfort Memory Foam
A 2cm layer of memory foam that cradles to your shape. This is where the cushioned, contouring feel comes from.
Ortho Comfort Foam
A 3cm layer specifically engineered to ease back and joint pain. It sits between the softer comfort foams and the springs.
Pocket Springs
800 Ortho Firm pocket springs, each encased in its own cloth pocket so it moves independently. This means the mattress adapts to your movement and distributes support where your body needs it.
Core Support Foam
A 4cm base layer of supportive foam that adds extra firmness. It promotes spinal alignment, underpinning the firm feel of the whole mattress.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Space for a firm sleep style: Firm sleepers tend to spread out rather than sink in, and 75cm each gives both of you room to lie flat without touching elbows.
- Less disturbance on different schedules: The 800 pocket springs move independently, which means an early alarm on one side transfers less movement across the wider 150cm surface.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, so anyone approaching 6ft gets their feet on the mattress rather than off the end.
- A meaningful step up from a double: The UK king is 15cm wider than the UK double, worth 7.5cm more space each, a difference you notice every night rather than only on paper.
- Airflow across a bigger surface: The bamboo charcoal top layer's air channels work across the full 150cm width, useful when two warm bodies share memory foam.
This size suits you if...
You share the bed every night and one of you keeps getting up first, or coming to bed last, and you're tired of feeling every movement. Or one of you is tall and a standard 190cm mattress leaves feet dangling, since this UK king runs to 200cm. It also suits couples who let the dog claim a corner and still want 75cm each left over.
Consider another size if...
Your bedroom can't manage our suggested minimum of 2.7m x 2.9m, or you mostly sleep alone. We'd recommend the UK double instead, which fits from around 2.6m x 2.8m and still sleeps two.
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FAQ's
Is a UK king big enough for a couple on this firm a mattress?
Yes, comfortably for most. You get 75cm each, and because the Mlily Bamboo+ Ortho is firm you sleep more on the surface than in it, so that width feels usable rather than theoretical. If you both sprawl, or a pet joins you nightly, the UK super king gives 90cm each, though it needs a room of at least 3m x 2.9m.
Will the UK king reduce partner disturbance on the Mlily Bamboo+ Ortho?
It helps in two ways. The 800 pocket springs each move independently, so one person shifting doesn't rock the whole mattress, and the 150cm width puts more distance between you than a double would. Neither makes movement disappear entirely, but the combination suits partners who keep different hours.
Is the Mlily Bamboo+ Ortho UK king long enough for someone over 6ft?
At 200cm, it's one of the longer standard UK sizes, 10cm longer than the UK single, small double or double. For anyone approaching or just over 6ft, that extra length usually means heels stay on the mattress. Very tall sleepers, well over 6ft 4in, may still find any standard UK size a little short.
What room size does a king version of this mattress need?
We suggest a room of at least 2.7m x 2.9m, and around 3.2m x 3.2m if you want to walk round both sides comfortably. That's our guidance rather than Mlily's. New build master bedrooms can shrink quickly once fitted wardrobes go in, so measure the free floor space, not the room on the plan.
Where can I buy the Mlily Bamboo+ Ortho in a UK king?
Stock and pricing change often, so the most reliable answer is the live comparison table on this page, which is updated as retailers change their listings. Check the price against the UK super king while you're there: sizing up or down is sometimes a smaller jump in cost than you'd expect.