MattressNextDay Nautilus Ortho Waterproof Contract Mattress
Mattress
MattressNextDay Nautilus Ortho Waterproof Contract Mattress
Size
Firmness
Construction
Depth (cm)
Layers
Layer Details
- 75cm each for two sharing: Two people get 75cm of width apiece, which means fewer accidental elbows and less disturbance when one of you shifts position in the night.
- Extra length for taller sleepers: At 200cm long, the UK king is 10cm longer than the UK double, a real difference if either of you is approaching six foot.
- The largest size in this range: This mattress tops out at the UK king, so this is the roomiest option available if you're kitting out a rental or guest room.
- Room for interrupted nights: If you're pregnant or recovering from injury, the extra width leaves space for propped pillows and easier repositioning without crowding your partner.
- Fits standard king bedding: The 150 x 200cm footprint takes ordinary UK king sheets and a 230 x 220cm king duvet, so nothing needs ordering specially.
This size suits you if...
You're sharing every night and the UK double has started to feel cramped, especially if one of you leaves for work hours before the other and the mattress needs to absorb that movement. It also suits landlords or hosts furnishing a main guest room, where a UK king reads as the generous option, and taller sleepers who need the 200cm length rather than the 190cm most smaller sizes offer.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m and still gives two people 67.5cm each.
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Is the Nautilus Ortho in a UK king big enough for two people?
Yes, comfortably. At 150cm wide it gives each sleeper 75cm, which is 7.5cm more per person than the UK double. Across UK buyers, the king is the most common upgrade for couples who find a double restrictive, and the waterproof cover on this contract mattress suits shared guest or rental beds where spills happen.
What room size do I need for a UK king mattress?
We suggest a room of at least 2.7m x 2.9m for a UK king, with around 3.2m x 3.2m feeling comfortable once wardrobes and bedside tables are in. New build master bedrooms can be tighter than they first appear, so measure with furniture in place before committing to the 150 x 200cm footprint.
How much bigger is the UK king than the UK double?
The UK king is 15cm wider and 10cm longer than the UK double, at 150 x 200cm against 135 x 190cm. For two sharing, that works out at 7.5cm more width each. The extra 10cm of length is the quieter benefit, and often the deciding one for anyone over six foot.
Does this mattress come in a size larger than a UK king?
No. The Nautilus Ortho Waterproof Contract Mattress runs from UK small single up to UK king, so there's no super king option. If you want the largest bed available in this range, the UK king at 150 x 200cm is it, and it matches the 200cm length a super king would give.
Is a UK king long enough for someone over six foot?
Usually, yes. The UK king is 200cm long, 10cm more than the 190cm you get with the UK single, small double or double. That extra length is often the reason taller sleepers size up, sometimes more than the width. In imperial terms the UK king measures 5ft x 6ft 6in.