Sealy Elevate Ultra Daito Double Mattress
The Sealy Elevate Ultra Daito Mattress pairs a MemoryFlex comfort layer with a firm overall feel, which means you get pressure relief on top of firm, steady support underneath.
- Firm, supportive feel
- Eases pressure at hips & lower back
- Cool-to-touch cover
£1,799
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Sealy Elevate Ultra Daito Mattress
More available sizes
Mattress details
Mattress
Sealy Elevate Ultra Daito Mattress
Size
Firmness
Firm
Construction
Foam
Memory Foam
Open Coil Spring
Depth (cm)
31
Layers
3
Layer Details
Sealy medium foam
A top layer of Sealy medium foam, described as soft yet supportive. It takes the edge off the firm rating so the surface feels a little more welcoming when you lie down.
MemoryFlex comfort layer
A full layer of MemoryFlex that adapts to your body shape. It gives pressure relief, so your shoulders and hips are cushioned rather than pushed back against.
MemorySense ComfortCore
A core that focuses on heavier areas like the hips and lower back. That means support is tailored to where your body needs it most.
Layer details from crushedvelvetbedstore.co.uk product page, November 2026.
Key benefits
- Fits a typical bedroom: We suggest a room of at least 2.6m x 2.8m, which means most UK main bedrooms and many second bedrooms can take it without feeling cramped.
- Shared space that suits steady sleepers: Each of you gets 67.5cm of width, enough for couples who settle in one position, although restless sleepers may want more elbow room.
- Support where each of you needs it: The MemorySense ComfortCore focuses on the hips and lower back, which means both partners get support aimed at where they carry most weight.
- Bedding is easy to find: Double sheets and a 200 x 200cm double duvet fit, and both are sold almost everywhere at every budget.
- Room left for the essentials: In a bedroom around 3m x 3m, the UK double leaves space for bedside tables on both sides and a clear path round the bed.
This size suits you if...
You share the bed with a partner and want firm support without giving up most of your floor space, your bedroom sits at or a little above our suggested 2.6m x 2.8m, or you're setting up a guest room where visiting couples need a proper shared bed.
Consider another size if...
You and your partner both sprawl or fidget through the night. The UK king would suit you better, giving 75cm each, and we suggest at least 2.7m x 2.9m for it.
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FAQ's
Is the Sealy Elevate Ultra Daito UK double big enough for two people?
For most couples, yes. The UK double gives 67.5cm each, which works well if you both sleep fairly still. If one of you spreads out or you're both tall, the UK king gives 75cm each and is 10cm longer, though it needs a slightly bigger room.
What size bedroom do I need for a UK double Sealy Elevate Ultra Daito?
We suggest at least 2.6m x 2.8m. Around 3m x 3m is more comfortable if you want a bedside table on each side and space to walk round the bed. Measure the room first, then compare the retailers listed on this page.
How big is a UK double mattress in feet and inches?
A UK double is 4ft 6in x 6ft 3in, or 135 x 190cm. That's the same length as a UK single, so taller sleepers who hang off the end of a single won't gain length by moving to a UK double.
Should I get the Sealy Elevate Ultra Daito in a UK double or UK king?
Choose the UK double if floor space is tight. The UK king is 15cm wider and 10cm longer, and we suggest at least 2.7m x 2.9m for it. If your room clears that comfortably and you'd like more personal space, the UK king is the easier fit for two.
What bedding fits a UK double Sealy Elevate Ultra Daito mattress?
Standard double sheets fit, along with a 200 x 200cm double duvet. The mattress is 31cm deep, so look for fitted sheets made for deeper mattresses, which means the corners are less likely to slip off overnight.