Sealy Eaglesfield Memory Ortho Plus Mattress
Mattress
Sealy Eaglesfield Memory Ortho Plus Mattress
Size
Firmness
Construction
Depth (cm)
25
Layers
2
Layer Details
- MemorySense Memory Foam. A memory foam comfort layer that moulds to your body, which means pressure builds more slowly at your hips and shoulders as you settle. It's designed to soothe pressure points and ease aches and pains.
- PostureTech Core Support Springs. A spring system using unique shapes and varied tensions, which means firmer support where your body is heavier and gentler give elsewhere. The result is full-body support with pressure relief rather than a uniformly hard base.
Layer details from mattressonline.co.uk product page, September 2026.
- Room to sleep apart, together: At 75cm each for two people sharing, you can settle into your own space rather than negotiating the middle of the bed.
- Less disturbance from a restless partner: The MemorySense foam absorbs movement as your partner shifts, and the extra width means their fidgeting happens further from you in the first place.
- Length for taller sleepers: At 200cm long, this size gives anyone approaching six foot proper clearance, so feet stay on the mattress rather than hanging past the end.
- Firm support across a wider surface: The PostureTech springs vary their tension across the mattress, which means two sleepers of different weights each get support suited to their own side.
- Early starts, later alarms: If one of you gets up hours before the other, the wider surface and moulding foam make that exit less likely to wake the sleeper left behind.
This size suits you if...
You share the bed every night and a double has started to feel cramped, or one of you is close to six foot and needs the 200cm length. It also suits couples on mismatched schedules, where one person leaving at dawn shouldn't wake the other, and your room measures at least 2.7m x 2.9m.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest, or you sleep alone. We'd recommend the UK double of this mattress instead, which needs at least 2.6m x 2.8m and is only 15cm narrower.
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Is a UK king big enough for a couple and a dog?
Usually, yes. Two people sharing get 75cm each, so a dog claiming a corner still leaves you more space than a double would offer without one. If your dog is large and sleeps between you every night, the UK super king adds another 30cm of width at the same length.
Will the Sealy Eaglesfield in a UK king suit a tall sleeper?
At 200cm long, the UK king version gives anyone approaching six foot an extra 10cm over the UK double, which is often the difference between feet on the mattress and feet off the end. Height matters too: at 25cm deep, it sits at a comfortable getting-in-and-out level on most king bases.
What room size do I need for the Sealy Eaglesfield UK king?
We suggest at least 2.7m x 2.9m, with more feeling comfortable once wardrobes and drawers go in. New build master bedrooms can be tighter than they first appear, so measure with your furniture placed before committing. If the room won't stretch, the UK double needs at least 2.6m x 2.8m.
Is the UK king worth it over the double for this mattress?
For couples, usually. The UK king is 15cm wider and 10cm longer than the UK double, and on a firm memory foam mattress like this, that width means each of you settles into your own moulded patch of foam rather than rolling towards a shared dip. Solo sleepers rarely need the upgrade.
Where can I buy the Sealy Eaglesfield in a UK king?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so the table reflects current stock and offers for the UK king specifically rather than the model as a whole. It's worth checking back before you buy, as king is a popular size and pricing moves.