Rem-Fit 4000 Ortho Elite Hybrid Mattress
Mattress
Rem-Fit 4000 Ortho Elite Hybrid Mattress
Size
Firmness
Construction
Depth (cm)
25
Layers
2
Layer Details
- Memory foam. A stability-focused memory foam layer that minimises sink, which means you'll feel cushioned rather than swallowed. It's designed to stop your hips and shoulders dropping out of alignment.
- Pocket springs. 4000 dual-layer orthopaedic pocket springs with multi-zoned support, so different areas of your body get the right level of push-back. Encapsulated edge support keeps the perimeter usable for sitting and sleeping.
Layer details from rem-fit.co.uk product page, September 2026.
- Room for two in an ordinary bedroom: At 135 x 190cm, the UK double gives each of you 67.5cm, which often leaves space for bedside tables on both sides in a typical master bedroom.
- Firm edges when you sleep near the side: Encapsulated edge support keeps the perimeter firm, which matters on a UK double because each of you lies closer to the edge than on a UK king.
- Less sliding into the middle: The stability-focused memory foam is designed to limit sink, so your 67.5cm feels usable from edge to centre instead of tipping you towards your partner.
- Simple to dress: Double sheets are sold almost everywhere, and a 200 x 200cm double duvet finishes the bed without any hunt for specialist bedding.
- A firm option for the guest room: A UK double sleeps a visiting couple comfortably, and the 9/10 feel suits back and front sleepers, although lighter side sleepers may find it a little hard.
This size suits you if...
You share with a partner in a typical UK bedroom and want firm support without giving up floor space, you're kitting out a spare room for visiting couples, or you sleep alone and like room to stretch out on a supportive surface.
Consider another size if...
You and your partner are both tall or broad-shouldered and already feel cramped at 67.5cm each. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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Is the Rem-Fit 4000 Ortho Elite UK double wide enough for two heavier sleepers?
The UK double gives you 67.5cm each. Heavier sleepers often do well on this mattress because the 9/10 firmness and zoned springs resist sagging. If your shoulders regularly touch, though, the UK double gives 7.5cm less each than the UK king, so sizing up is the better fix.
Rem-Fit 4000 Ortho Elite UK double vs small double for a couple?
The UK double is 15cm wider than the UK small double, and both are the same length. For two adults sharing every night, that extra width makes a real difference. The UK small double suits tighter rooms, where we suggest at least 2.4m x 2.8m.
Will a UK double Rem-Fit 4000 fit in a second bedroom with a wardrobe?
Allow at least 2.6m x 2.8m for the UK double, and more if a wardrobe and drawers also need space to open. In a first flat or box-shaped second bedroom below that, the UK small double would suit you better, with a suggested minimum of 2.4m x 2.8m.
Is a UK double Rem-Fit 4000 Ortho Elite long enough if you're tall?
The UK double is 190cm long, or 6ft 3in. Most people fit comfortably, but if your feet reach the end, the UK double is 10cm shorter than the UK king, and the UK king also adds width for sharing.
How big is the Rem-Fit 4000 Ortho Elite UK double in feet and inches?
The UK double measures 4ft 6in x 6ft 3in, which is 135 x 190cm. It is 25cm deep, the same as every size of this mattress, so check that your bed frame accepts a 4ft 6in mattress before you order.