Simba Hybrid Luxe King Size Mattress
The Simba Hybrid Luxe is a 31cm deep hybrid mattress with 5,700 springs across multiple layers, which means support that adjusts to different parts of your body rather than one uniform feel.
- Thirteen zones of targeted support
- Wool & bamboo keep you cooler
- 200-night trial & 10-year guarantee
£1,272
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Simba Hybrid Luxe King Size Mattress
Simba Hybrid Luxe Mattress
More available sizes
Mattress details
Mattress
Simba Hybrid Luxe Mattress
Size
Firmness
Medium Firm
Construction
Foam
Hybrid
Wool
Memory Foam
Depth (cm)
31
Layers
8
Layer Details
Soft, cooling cover
A zip-off, washable cover with Stratos tech that prevents heat build-up, which means you can keep it fresh without wrestling the whole mattress. Hot sleepers should notice the difference on warm nights.
Bamboo infused wool layer
British wool infused with moisture-wicking bamboo for better breathability. Wool naturally regulates temperature, so this layer helps in winter as well as summer.
Fresh Simbatex foam layer
Simba's own foam with enhanced airflow and superior elasticity, which means cushioning that springs back quickly rather than leaving you feeling stuck.
Two layers of Aerocoil springs
A double layer of patented microsprings arranged in thirteen supportive zones. These target parts of the body with specific needs, like your back, hips and shoulders.
Stabilising core foam layer
A CertiPUR foam layer that provides structural support and extra airflow. It keeps the layers above it working consistently.
Micro spring support layer
An extra layer of up to 900 high carbon steel microsprings for maximum support. This is where the mattress earns its medium-firm side.
SupportCore sprung base
Up to 1,000 pocketed, tempered steel barrel springs giving firm, edge-to-edge support with no roll-off. That means you can use the full width of the bed, right to the edge.
High-density foam base and cover
CertiPUR foam with a breathable cover made from recycled yarn. It gives the whole mattress its stability.
Layer details from simbasleep.com product page, September 2026.
Key benefits
- Space that changes how you share: At 15cm wider than the UK double, the UK king gives each of you 75cm, which means turning over without brushing your partner awake.
- Length for taller sleepers: The 200cm length adds 10cm over the UK double, so anyone approaching six foot stops sleeping with their feet at the edge.
- Less disturbance across the width: Two layers of Aerocoil microsprings absorb movement locally, which matters more at this width: an early alarm on one side stays on one side.
- Usable right to the edge: The sprung base gives firm edge-to-edge support, so all 150cm counts, including the strip where a dog or restless partner pushes you.
- Cooling that suits two bodies: Two people generate more heat than one, and the wool, bamboo and cooling cover are designed to move that warmth away rather than trap it.
This size suits you if...
You share the bed every night and a double has started to feel like a compromise, one of you gets up hours before the other and you want their movement absorbed rather than transmitted, or one of you is over six foot and needs the 200cm length as much as the width. It also suits couples whose dog has made a permanent claim on the bed.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest as a minimum for a UK king, or you sleep alone. In either case we'd recommend the UK double instead: shorter and narrower, but far easier to live around.
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FAQ's
Is the UK king Simba Hybrid Luxe big enough for a couple?
Yes, comfortably. At 150 x 200cm it gives two people sharing 75cm of width each, which is enough to change position without touching. Add the thirteen support zones working independently across that width and each sleeper effectively gets their own supported half of the bed.
Will the UK king size reduce partner disturbance?
It helps in two ways. The extra width over the UK double puts more distance between you, and the layered microsprings absorb movement close to where it happens. Across verified owner reviews, reduced disturbance from a restless or early-rising partner is one of the more consistent themes for this mattress.
Is the Simba Hybrid Luxe UK king long enough for someone over six foot?
At 200cm, or 6ft 6in, the UK king gives a six-footer clear space above and below, unlike the 190cm UK double where taller sleepers often find their feet at the edge. If height is your reason for upgrading, the UK king delivers the extra length without demanding a super king sized room.
What room size do I need for a king size Simba Hybrid Luxe?
We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m the comfortable target. That allows walking space on both sides and room for bedside tables. A new build master bedroom can shrink surprisingly once fitted wardrobes go in, so measure the finished floor space rather than trusting the plan.
Should I get the Simba Hybrid Luxe in a UK king or a UK super king?
The UK super king is 30cm wider than the UK king and the same length, so the choice is purely about width and room size. If your bedroom clears 2.7m x 2.9m but only just, the UK king is the sensible pick; the wider size needs noticeably more floor to avoid dominating the room.