MLILY Summit Ortho 2800 Cool Gel Hybrid Mattress
Mattress
MLILY Summit Ortho 2800 Cool Gel Hybrid Mattress
Size
Firmness
Depth (cm)
27
Layers
5
Layer Details
- Gel Infused Quilted Sleep Surface. A quilted top layer of M-Luxe Gel Memory Foam cushions your pressure points while drawing heat away from your body. You'll feel gentle cushioning without the surface warming up overnight.
- M-Luxe Cool Gel Memory Foam. This layer gently moulds to your body shape for full-body support and comfort. The gel infusion continues pulling heat away, keeping things fresh rather than clammy.
- Responsive Reflex Foam. Reflex foam contours to your shape while keeping the mattress feeling firm. It adds gentle cushioning without letting you sink too far.
- Pocket Springs. Full-size pocket springs adjust individually to your movements and weight distribution, which means orthopaedic support exactly where your body needs it. A layer of mini pocket springs sits alongside, refining that support at an even closer level.
- High-Density Support Foam Base Layer. A deep layer of Flex Foam anchors the mattress and promotes healthy spinal alignment. It provides the full-body support and tension relief the layers above build on.
Layer details from mattressnextday.co.uk product page, September 2026.
- 7.5cm more space each than a double: The UK king is 15cm wider than the UK double, giving each of you 7.5cm more, enough to turn over without bumping elbows.
- Pocket springs limit partner disturbance: The 2,800 individually moving pocket springs respond to each sleeper separately, so an early alarm on one side transfers less across the extra width.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, a genuine relief if one of you is approaching six foot.
- Firm support across the full width: The high-density foam base keeps the surface consistent edge to edge, useful when a dog claims the middle and pushes you both outwards.
- Cool gel surface at couple scale: Two bodies raise the temperature under a duvet; the gel-infused quilted top draws heat away, so the shared bed stays fresher overnight.
This size suits you if...
You share the bed every night and the double has started to feel cramped, one of you gets up hours before the other and you'd rather not feel it, or a taller partner keeps finding their feet at the edge of a 190cm mattress. It also suits couples whose pet has become a permanent third occupant and who need firm support that holds up across the whole width.
Consider another size if...
Your bedroom is under our suggested 2.7m x 2.9m minimum, or you're a solo sleeper who doesn't need the width. We'd recommend the UK double instead, which needs a smaller room at around 2.6m x 2.8m.
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How big is the MLILY Summit Ortho 2800 in a UK king?
The UK king measures 150 x 200cm, or 5ft x 6ft 6in. Shared between two, that gives 75cm of width each. The mattress itself is 27cm deep in every size, so it's the footprint, and the space each sleeper gets, that changes here.
Is a UK king MLILY Summit Ortho worth it over the double for couples?
For most couples sharing every night, yes. The UK king is 15cm wider and 10cm longer than the UK double, which means 7.5cm more width each and room for taller sleepers to stretch out. If your bedroom can take it, the extra space is the difference you'll feel nightly.
Will a king size reduce partner disturbance on this mattress?
It helps on two fronts. The 2,800 pocket springs move individually, so one person shifting or getting up early transfers less motion, and the wider 150cm surface means you're less likely to be lying close enough to notice in the first place. Restless couples on different schedules benefit most.
What room size do I need for the Summit Ortho 2800 in a UK king?
We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m feeling comfortable once wardrobes and bedside tables are in. Newer master bedrooms can be tighter than they look on a floor plan, so measure with your existing furniture in place before you order.
Should I go up to the super king instead of the king for this mattress?
The UK super king is 30cm wider than the UK king, giving 90cm each rather than 75cm, though both are the same 200cm length. It needs a bigger room, at least 3m x 2.9m by our guidance. If width is your priority and the room allows, size up; if length was the draw, the UK king already gives you that.