Emma Diamond Spring Free Deluxe Mattress
Mattress
Emma Diamond Spring Free Deluxe Mattress
Size
Firmness
Medium Soft
Construction
Depth (cm)
29
Layers
Layer Details
- Real space for two: At 150cm wide the UK king is 15cm wider than the UK double, which means fewer accidental elbows and more room to settle.
- Less partner disturbance: If one of you gets up hours before the other, 75cm each of a gentle, cushioned surface makes those early exits easier to sleep through.
- Length for taller sleepers: The 200cm length, that's 6ft 6in from head to foot, gives anyone approaching six foot room to stretch without their feet hanging off.
- A softer feel across a bigger bed: The medium soft feel suits side sleepers, and in a UK king each of you gets enough width to sink in without drifting together.
- Deep build, standard bedding: At 29cm deep it's a substantial mattress, yet standard deep-fitted king sheets should still fit without a struggle.
This size suits you if...
You share the bed every night and a double has started to feel cramped, especially if you sleep on your side and want a softer surface with space to spread out. It also suits couples where one partner is noticeably taller, since the 200cm length is part of the upgrade, or households where a dog has claimed a permanent corner of the bed and you'd rather not fight for it.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest as a minimum for a king, or you sleep alone. In either case we'd recommend the UK double instead, which keeps the same medium soft feel in a smaller footprint.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
Is the Emma Diamond Spring Free Deluxe in a UK king big enough for a couple?
Yes, comfortably for most. At 150 x 200cm it gives 75cm each for two people sharing, which is enough width to change position without disturbing your partner. Because this mattress has a medium soft feel, that personal space matters slightly more than usual: a softer surface makes movement a little easier to feel, so the extra width helps.
What size room do I need for the UK king Emma Diamond Spring Free Deluxe?
We suggest a room of at least 2.7m x 2.9m, with 3.2m x 3.2m more comfortable, so you can walk round both sides and open wardrobe doors. New build master bedrooms can be tighter than they first appear once furniture goes in, so measure with wardrobes and drawers in place before committing.
Is a UK king worth it over the double for this mattress?
If you share the bed, usually yes. The UK king is 15cm wider than the UK double and 10cm longer at 200cm, and on a medium soft mattress like this the extra width means you're less likely to feel a partner shifting. If you're tall, the added length alone can justify the step up.
Will my existing bed frame fit this UK king mattress?
Only if the frame is a UK king itself, which means a 150 x 200cm base. A double frame won't work, as this mattress is both wider and longer. Also check clearance under any footboard: at 29cm deep, this is a taller mattress than many, and it will sit noticeably higher on the frame.
Is the king size long enough for someone over six foot?
It should be. The UK king measures 200cm long, which is 6ft 6in, so someone a little over six foot has clear space above and below. That's 10cm more length than a UK double, and for taller sleepers that extra length is often the real reason to size up, more than the width.