Simba Hybrid Pro Core Single Mattress
The Simba Hybrid Pro Core Mattress combines a Stratos cool-touch cover and British wool with Aerocoil microsprings, which means you get a breathable surface and targeted support at your hips and shoulders.
- Cool-touch cover keeps you fresher
- Targeted support at hips & shoulders
- 200-night trial & 10-year guarantee
£749
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Simba Hybrid Pro Core Mattress
More available sizes
Mattress details
Mattress
Simba Hybrid Pro Core Mattress
Size
Firmness
Medium Firm
Construction
Foam
Hybrid
Pocket Spring
Wool
Depth (cm)
28
Layers
8
Layer Details
Soft, cooling cover
A zip-off, washable cover with Stratos tech that prevents heat build-up. It keeps the surface cooler and is easy to keep clean.
Natural wool layer
A soft layer of British wool that Simba says enhances breathability and comfort. It helps the surface feel fresh and cushioned.
Fresh Simbatex foam
Foam designed to enhance airflow, with elasticity for cushioning. You get some give on top without trapping heat.
High-elasticity CertiPUR foam layer
A CertiPUR foam layer engineered for elasticity. It adds a cushioned feel and springs back as you move.
Titanium alloy Aerocoil springs
Patented microsprings designed to support parts of the body with specific needs, such as hips and shoulders. They respond independently, so support is targeted where you need it.
Stabilising core foam layer
A CertiPUR foam layer that provides structural support and extra airflow. It steadies the layers above and helps air move through the mattress.
SupportCore sprung base
Up to 1,000 pocketed, tempered steel barrel springs for firm edge-to-edge support with no roll-off. You can sit or sleep near the edge and still feel supported.
High-density foam base
A CertiPUR foam base that works with the SupportCore springs to deliver stability and support. It gives the whole mattress a steady foundation.
Layer details from simbasleep.com product page, November 2026.
Key benefits
- Leaves room for everything else: We suggest at least 2.1m x 2.8m for a UK single, so a small bedroom can still fit a desk, a wardrobe and some floor to play on.
- Usable right to the edge: The SupportCore pocketed springs give firm edge-to-edge support, which means a child or teen can use the full 90cm width without feeling they might roll off.
- Two beds for guests: Two UK singles side by side let guests sleep apart, and the medium-firm feel should suit most back and side sleepers who stay over.
- Easy to clean in a child's room: The zip-off cover is machine washable, so a spilt drink or a poorly night becomes a laundry job rather than a lasting mark.
- Fresher in a warm loft: Simba says the Stratos cover and British wool improve breathability, which helps in a loft conversion where only a narrow bed fits beneath the sloping ceiling.
This size suits you if...
You sleep alone in a compact room and want a supportive medium-firm feel, or you're furnishing a child's bedroom or a guest room set up with two separate beds.
Consider another size if...
You're an adult who likes space to spread out, or a teenager is outgrowing a narrow bed. The UK small double would suit you better: it is 30cm wider, the same length, and we suggest at least 2.4m x 2.8m.
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FAQ's
Will the Simba Hybrid Pro Core UK single fit a bunk bed or mid sleeper?
The mattress is 28cm deep. Bunk beds, cabin beds and mid sleepers usually set a maximum mattress depth so the safety rail stays high enough above the sleeper, and that limit varies from frame to frame. Check your frame maker's guidance before buying, and only go ahead if 28cm sits within it.
What size room do I need for a Simba Hybrid Pro Core single?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves enough room to walk around the bed and open drawers, which matters in a child's room or a box room that also holds a desk.
What are the Simba Hybrid Pro Core UK single dimensions in feet?
The UK single measures 90 x 190cm, which is 3ft x 6ft 3in. It takes standard UK single bedding, so fitted sheets and a single duvet are easy to find in any shop.
Is a UK single long enough for a tall teenager?
The UK single is 190cm long, the same length as the UK small double and UK double. If length is the concern rather than width, the UK king is 10cm longer, although it is also much wider, and we suggest at least 2.7m x 2.9m for it.
Simba Hybrid Pro Core single or small double for a teenager's room?
The UK single is 30cm narrower than the UK small double, and the two are the same length. A single keeps more floor free, with our suggested minimum at 2.1m x 2.8m against 2.4m x 2.8m for the small double. Choose the small double if the room allows and your teen sleeps restlessly.