Rem-Fit 3000 Supreme Hybrid King Size Mattress
The Rem-Fit 3000 Supreme Hybrid pairs open-cell memory foam with 3000 dual-layer pocket springs in a 25cm deep mattress.
- Reduces heat build-up
- Minimises partner disturbance
- 100-night trial & 15-year guarantee
£539.99
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Rem-Fit 3000 Supreme Hybrid Mattress
More available sizes
Mattress details
Mattress
Rem-Fit 3000 Supreme Hybrid Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
25
Layers
2
Layer Details
Open-cell memory foam
A pressure-relieving open-cell memory foam that circulates air through the night, which means less of the heat build-up memory foam is often criticised for. It cushions your hips and shoulders where pressure tends to concentrate.
Dual-layer pocket springs
3000 dual-layer pocket springs that are zoned and responsive, giving firmer support where your body needs it. Because each spring moves independently, your partner's movements are far less likely to disturb you.
Layer details from rem-fit.co.uk product page, September 2026.
Key benefits
- More room each: At 75cm per sleeper, you each get 7.5cm more than on a UK double, which means fewer knees and elbows meeting when one of you turns over.
- Length for taller sleepers: The UK king is 10cm longer than a UK double, so a tall partner is far less likely to wake with their feet pressed against the footboard.
- Calmer mornings on different schedules: The zoned pocket springs work independently, so when one of you gets up hours before the other, most of that movement stays on their side of the bed.
- A middle-ground feel for two: Rem-Fit rates it medium at 6/10, which suits most couples, although a partner who likes a properly firm bed may find it slightly too forgiving.
- Less heat between two sleepers: Open-cell memory foam lets air move through the comfort layer, which helps on a shared bed where two bodies can make the surface feel a little warm.
This size suits you if...
You share the bed every night and a UK double has started to feel cramped, one of you is tall enough that the extra length matters as much as the width, or your working hours differ and you want the early riser to leave without waking the other.
Consider another size if...
Your bedroom falls short of our suggested minimum of 2.7m x 2.9m for a UK king. We'd recommend the UK double instead, for which we suggest at least 2.6m x 2.8m.
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FAQ's
Is the Rem-Fit 3000 Supreme Hybrid UK king long enough for a tall person?
The UK king measures 150 x 200cm, or 5ft x 6ft 6in, making it 10cm longer than the UK double. If one of you regularly finds your feet at the very edge of a double, that extra length is often the main reason to upgrade, more so than the width.
Will I feel my partner moving on a Rem-Fit 3000 Supreme Hybrid king size?
Less than on a smaller size. The 3000 pocket springs move independently, so a partner turning over or getting up is less likely to reach you. On a UK king you also have 75cm each, rather than 67.5cm on a UK double, which puts a little more distance between you.
Is it worth upgrading from a double to a Rem-Fit 3000 Supreme Hybrid UK king?
If you share every night, yes for most couples. You gain 7.5cm of width each and 10cm of length. That sounds modest on paper, but across a whole night it is the difference between sleeping side by side and sleeping pressed together. Compare the retailers listed on this page for current prices.
Should couples choose the UK king or UK super king in the Rem-Fit 3000 Supreme Hybrid?
The UK king gives 15cm less each than the UK super king, at 75cm against 90cm, but both are the same length. If your room is tight, the UK king is the practical choice. We suggest at least 3m x 2.9m for the UK super king, so check your floor space first.
Will a Rem-Fit 3000 Supreme Hybrid king fit in a new build master bedroom?
Allow at least 2.7m x 2.9m for a UK king. New build bedrooms can feel smaller once fitted wardrobes and bedside tables are in, so measure the floor you actually have free rather than the room's listed size. If you fall short, the UK double is the safer fit.