Sealy Waltham Mattress
Mattress
Sealy Waltham Mattress
Size
Firmness
Medium
Construction
Depth (cm)
29
Layers
4
Layer Details
- Cover. A smooth quilted surface in knit fabric. It gives the sleeping surface a soft, finished feel from the first night.
- Filling. A latex filling that provides pressure relief with a resilient, bouncy feel. In practice, that means cushioning for your hips and shoulders without the stuck-in sensation some foams create.
- Spring System. Sealy's proprietary PostureTech spring system, built for even weight distribution and zoned support. Different areas of the mattress respond differently, so heavier parts of your body get firmer backing.
- Edge Support. Sealy's EdgeGuard extends the usable sleeping area and supports durability. You can sit or sleep near the edge without the sides collapsing.
Layer details from furniturevillage.co.uk product page, September 2026.
- Room to sleep apart, together: At 75cm each for two people sharing, you can both stretch out without touching, which matters if one of you shifts around at night.
- Extra length for taller sleepers: The UK king is 10cm longer than the UK Double at 200cm, so anyone approaching six foot stops finding their feet at the edge.
- Latex response across a wider bed: Latex springs back quickly, which means turning over in this bigger sleeping area takes less effort than on slower memory foams.
- Zoned support for two different bodies: Sealy's PostureTech springs respond differently under heavier areas, useful when two sleepers of different builds share the same surface.
- Usable width right to the sides: EdgeGuard reinforced edges mean the full 150cm is genuinely sleepable, so neither of you loses ground when a dog claims the middle.
This size suits you if...
You share the bed every night and a double has started to feel like a compromise, you or your partner keep different hours and want enough distance that early alarms and late nights don't wake the other, or one of you is approaching six foot and needs the 200cm length as much as the width. It also suits couples whose dog treats the bed as a third resident.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest for a UK king, especially once wardrobes go in. The UK double would suit you better; allow at least 2.6m x 2.8m for that size.
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Is the Sealy Waltham UK king a good size for couples?
Yes, and it's the size we'd point most sharing couples towards. You get 75cm each for two people sharing, and the UK king is 15cm wider than the UK Double, a gap you notice every night. Sealy's EdgeGuard means the sides hold up too, so neither of you drifts towards the middle to avoid a soft edge.
What are the dimensions of the Sealy Waltham in a UK king?
The UK king measures 150 x 200cm, or 5ft x 6ft 6in. That's 15cm wider and 10cm longer than the UK double, and 30cm narrower than the UK super king. Standard UK king sheets fit, and a 230 x 220cm king duvet is the usual pairing.
Will the Sealy Waltham UK king reduce partner disturbance?
The width does most of the work: with 75cm each for two people sharing, one of you getting up hours before the other is easier to sleep through. One caveat, latex is bouncier than memory foam, so the surface itself transfers a little more movement. If your schedules differ wildly, the space matters more than the material.
What room size do I need for the Sealy Waltham UK king?
We suggest at least 2.7m x 2.9m, with around 3.2m x 3.2m feeling comfortable. That's our guidance, not Sealy's, and it assumes you want to open drawers and walk round the bed without shuffling sideways. New build master bedrooms can be tighter than they look once fitted wardrobes go in, so measure before committing.
Is the UK king long enough if I'm over six foot?
At 200cm, the UK king is 10cm longer than the UK double, which is often the real reason taller sleepers upgrade rather than the width. Someone around six foot fits with room to spare. If you're well past that, no standard UK size adds more length; the UK super king is wider, not longer.