Sealy Ortho Plus Essential Mattress
Mattress
Sealy Ortho Plus Essential Mattress
Size
Firmness
Construction
Depth (cm)
27
Layers
3
Layer Details
- Damask Cover. A cover made from breathable Belgian damask fabric, which means air can move through the sleep surface rather than getting trapped against you. It gives a traditional, tailored finish.
- Soft White Fibres. Soft fibre fillings made from 100% polyester sit above the springs. They add a slightly softer initial feel before you reach the firmer support beneath.
- PostureTech CS Springs. These springs respond to your body weight to provide deep down support, so heavier areas like hips and shoulders get pushed back where needed. They are twice tempered, which means the steel is treated to stay resilient over time.
Layer details from mattressnextday.co.uk product page, September 2026.
- A shared size that fits most rooms: At 135 x 190cm, this double leaves space for bedside tables on both sides in a typical UK bedroom, which a UK king often doesn't.
- Firm support for two body weights: The PostureTech CS springs respond to each sleeper's weight individually, which means a heavier partner gets deep down support without dictating the feel across the whole surface.
- Sensible for a guest room: Its medium firm feel suits the widest range of visiting couples, and the simple construction keeps costs down where the bed sees occasional use.
- Easy to dress and replace bedding: Standard double sheets and a 200 x 200cm double duvet fit, both stocked everywhere at every price, which matters if you're kitting out a whole home at once.
- Breathable surface for two sharing: Two people generate more heat than one, and the Belgian damask cover lets air move through the sleep surface rather than trapping it.
This size suits you if...
You share the bed most nights and your bedroom sits around the typical UK size, where a UK king would leave no walking room. Or you're furnishing a first flat or spare room on a spread-thin budget and want a firm, no-frills mattress in the size guests and future buyers expect. Allow at least 2.6m x 2.8m of floor space, with around 3m x 3m the comfortable norm.
Consider another size if...
You're a couple who wake each other, since open coil springs carry movement across the bed and 67.5cm each is snug. We'd recommend the UK king instead, which is 15cm wider and 10cm longer; allow at least 2.7m x 2.9m.
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Is the Sealy Ortho Plus Essential UK double good for couples?
It works well for couples who go to bed at similar times and like a firmer feel. The open coil design does carry movement across the mattress more than pocket springs would, so if one of you is a restless sleeper or keeps different hours, you'll notice the other person turning over.
How much space does each person get on the UK double?
Two people sharing get 67.5cm of width each. That's the long-standing UK standard for couples, though it's snug compared with a modern UK king. Broad-shouldered sleepers, or anyone who shares with a dog or cat claiming a corner, may find the extra width of sizing up pays off.
What room size do I need for the UK double Sealy Ortho Plus Essential?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows bedside tables on both sides and space to walk around the bed. If your room is tighter than that, the UK small double is 15cm narrower and the same length; allow at least 2.4m x 2.8m.
Should I choose the Sealy Ortho Plus Essential in a UK double or a UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king, so it suits rooms where a king would dominate. If your bedroom offers at least 2.7m x 2.9m and you share every night, the UK king gives each of you noticeably more space, and it costs more accordingly.
Does the UK double suit a guest room?
Yes, and it's a sensible pick for one. The medium firm, traditional feel suits a wide range of visiting couples, the simple polyester fillings keep the price down for a bed used occasionally, and standard double bedding is easy to buy anywhere. Compare the retailers listed on this page for current prices.