Sealy Tudor Contract King Size Mattress
The Sealy Tudor Contract is an orthopaedic mattress with Sealy's firmest rating, described as Extra Firm with a very firm, sturdy feel.
- Extra-firm without a boardy surface
- OEKO-TEX certified cover
- Fillings hold their shape over time
£645
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Sealy Tudor Contract Mattress
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Mattress details
Mattress
Sealy Tudor Contract Mattress
Size
Firmness
Extra Firm
Construction
Orthopaedic
Depth (cm)
26
Layers
2
Layer Details
Comfort Layer
Soft white synthetic fibres sit on top, which means a cosy initial feel rather than the boardy surface some extra firm mattresses have. They're durable and resilient, designed to keep their shape over time.
Support System
PostureTech Core Support Springs use unique shapes and varied tension across the unit, which means support that adapts to different parts of your body. The aim is full-body support with pressure relief, giving the mattress its sturdy, extra firm character.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Room to sleep apart, together: At 75cm each for two people sharing, you can settle into your own space on this firm, sturdy surface without negotiating over the middle.
- Less disturbance on different schedules: If one of you gets up hours before the other, the extra width means climbing out from your own side rather than over a sleeping partner.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, which keeps feet on the mattress for anyone approaching six foot.
- Firm support across the full width: The PostureTech Core Support Springs run the whole 150cm, so the extra firm feel is consistent whether you sleep near the edge or centre.
- Space that absorbs a shared bed's extras: A dog with a fixed spot at the foot, or a pile of propping pillows, eats less of your sleeping space at this width.
This size suits you if...
You share the bed every night and a double has started to feel cramped, you and your partner keep different hours and want to come and go with less disturbance, or one of you is tall enough to appreciate the 200cm length. You should also both genuinely want an extra firm feel, because this is Sealy's firmest rating and the size doesn't soften that.
Consider another size if...
Your bedroom is under our suggested 2.7m x 2.9m minimum, or you sleep alone. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m and keeps the same extra firm build.
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FAQ's
How big is the Sealy Tudor Contract in a UK king?
It measures 150 x 200cm, or 5ft x 6ft 6in. For two people sharing, that works out at 75cm each, which is 15cm more width than a UK double offers overall and 10cm more length. The 26cm depth is the same across every size, so standard king fitted sheets should work.
Will a UK king Sealy Tudor Contract fit my bedroom?
We suggest a room of at least 2.7m x 2.9m for a UK king, which leaves walking space on both sides and room to open drawers. New build master bedrooms can be tighter than they first appear once wardrobes go in, so measure the usable floor rather than the full room.
Is the UK king Sealy Tudor Contract good for couples on different schedules?
It's a sensible match. With 75cm each for two people sharing, the person getting up early can slide out from their own side rather than across the bed. Bear in mind the extra firm feel: this only works for you as a couple if both of you want a very firm, sturdy mattress.
Is the UK king long enough if my partner is over six foot?
At 200cm, it's 10cm longer than the UK double, which is often the difference between feet hanging off the end and not. If height is your main reason for upgrading, the UK king gives you that length. The UK super king is the same length, so going bigger only adds width.
Should I pick the Sealy Tudor Contract in a UK king or a UK super king?
The UK king is 30cm narrower than the UK super king and both are the same length. If your room meets the 3m x 2.9m we suggest for a UK super king and you want maximum personal space, size up. If space is tighter, the UK king remains a comfortable shared size. Compare the retailers listed on this page for current prices.