Arthur Sleep Hotel Arthur King Size Mattress
The Hotel Arthur from Arthur Sleep is a pocket spring mattress built around a 1000 pocket spring system, which means each spring moves independently and you feel less of your partner's tossing and turning.
- Supportive right to the edges
- Springs respond to your body
- Minimises partner disturbance
£579
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Arthur Sleep Hotel Arthur Mattress
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Mattress details
Mattress
Arthur Sleep Hotel Arthur Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Depth (cm)
Layers
3
Layer Details
Top layer
A premium comfort layer sits on top, although the listing doesn't specify exactly what it's made from. It provides the initial cushioning you'll feel when you lie down.
Core
A 1000 pocket spring system forms the core, which means each spring responds to your body individually rather than as one unit. You get support where you press down and less motion transfer across the bed.
Border
A 10cm foam encapsulated border wraps the springs, giving edge-to-edge support and a reinforced sleep surface. In practice, the mattress feels usable across its full width, including when sitting on the side.
Layer details from mattressman.co.uk product page, September 2026.
Key benefits
- Room to sleep apart, together: At 150cm wide you get 75cm each for two people sharing, which means you can both change position without negotiating for territory.
- Less disturbance on different schedules: Each of the 1000 pocket springs moves independently, so an early alarm on one side transfers less movement to the person still asleep on the other.
- Extra length for taller sleepers: The UK king is 10cm longer than the UK double at 200cm, a difference anyone approaching six foot feels at their ankles every night.
- Usable right to the sides: The 10cm foam encapsulated border keeps the surface supportive at the edges, so the full 150cm width is sleepable rather than shrinking in practice.
- A shared feel that suits sharing: The medium firm rating suits most back and combination sleepers, a practical middle ground when two people with different habits are choosing one mattress.
This size suits you if...
You share the bed every night and a double has started to feel like a compromise, especially if one of you gets up hours before the other and the movement carries. Or one of you is approaching six foot and it's length, as much as width, that you're really shopping for. Your room should allow at least 2.7m x 2.9m to take a UK king comfortably.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king, or you sleep alone. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m and keeps most of the width.
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FAQ's
Is the Hotel Arthur in a UK king good for couples on different schedules?
It's a sensible pairing. The 150cm width gives 75cm each for two people sharing, and the 1000 pocket springs respond individually, so someone leaving for an early shift creates less ripple across the bed. The 10cm foam encapsulated border also helps here: sitting on the edge to dress doesn't tip the whole surface.
Is the UK king Hotel Arthur long enough for someone over six foot?
At 200cm, the UK king is 10cm longer than the UK double, and for taller sleepers that length is often the real reason to upgrade. Feet stop hanging over the end, and the foam encapsulated border means the mattress stays supportive right to the foot of the bed rather than softening off.
What size room do I need for the Hotel Arthur in a UK king?
We suggest at least 2.7m x 2.9m, with more feeling comfortable once wardrobes and bedside tables are in. New build master bedrooms can be tighter than they first appear, so measure the usable floor after furniture, and check you can still open doors and drawers with a 150 x 200cm mattress in place.
Should I pick the UK king or the UK super king Hotel Arthur?
The UK king is 30cm narrower than the UK super king; both are the same 200cm length. If a pet routinely claims part of the bed, or you both like to sprawl, the extra width helps, but the UK super king needs a room of at least 3m x 2.9m. Where space is tight, the UK king is the safer choice.
How does the medium firm feel work at king size for two sleepers?
The medium firm rating doesn't change with size, but sharing does change what matters. Across 150cm, the pocket springs support each of you according to your own weight, so a heavier and lighter partner aren't forced into one another's dip. Lightweight side sleepers may still find it a little too solid, whatever the size.