Vispring Bedstead Realm Medium Mattress
Mattress
Vispring Bedstead Realm Medium Mattress
Size
Firmness
Medium
Construction
Depth (cm)
21
Layers
5
Layer Details
- Top upholstery layer. Bonded British fleece wool and cotton sit directly beneath you, which means a breathable, naturally temperature-regulating sleep surface. Wool wicks moisture away, so you should feel less clammy than on foam.
- Middle upholstery layer. A layer of British fleece wool adds cushioning depth. It softens the surface slightly without undermining the firm, stable support beneath.
- Bamboo layer. Bamboo brings extra breathability and resilience to the comfort layers. It is a naturally airy fibre, helpful if you tend to overheat at night.
- Bottom upholstery layer. Layered British fleece wool and cotton cushion the transition between you and the springs. This stops you feeling the spring unit directly while keeping the response even.
- Spring system. 1,326 hand-nested vanadium steel pocket springs, arranged in a single layer within calico pockets. Because each spring moves independently, you get support that follows your shape and less disturbance from a partner turning over.
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Layer details from vispring.com product page, September 2026.
- Leaves floor space free: At 90cm wide, the UK single leaves room for a desk and wardrobe in a small bedroom, and we suggest allowing at least 2.1m x 2.8m.
- Suits bedsteads and many frames: At 21cm deep plus around 6cm of doming, it sits lower than many modern mattresses, which helps on a traditional single bedstead.
- Breathable for a warm box room: British fleece wool, cotton and bamboo upholstery lets heat and moisture escape, which means a teenager in a small, stuffy room is less likely to wake up clammy.
- Even support for one sleeper: The 1,326 hand-nested pocket springs work independently, which means the support follows one body closely across the full UK single surface.
- Pairs well in a twin guest room: Two UK singles side by side give guests who aren't couples a bed each, and each sleeper gets the same firm, stable surface.
This size suits you if...
You sleep alone and want natural materials in a compact room, or you're furnishing a guest room where two separate beds suit visitors better than one. It also suits a teenager who has grown past a soft children's mattress and would get on with a firmer, stable surface.
Consider another size if...
You share the bed with a partner, or the bed is for a light young child who needs a softer feel. For couples, we'd recommend the UK double instead, which gives 67.5cm each; allow at least 2.6m x 2.8m.
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Will the Vispring Bedstead Realm UK single fit a mid sleeper or cabin bed?
Raised frames usually have a maximum mattress depth, set so the safety rail stays high enough above the sleeper. This mattress is 21cm deep plus around 6cm of doming, so check the frame maker's stated limit against both figures before buying. Many bunk and mid sleeper frames expect a shallower mattress, so do this check before anything else.
Is the Vispring Bedstead Realm a good single mattress for a child?
It depends on the child's weight. Vispring describes the feel as firm, lasting support, and lightweight side sleepers may find it a little unyielding. A young child is light, so they may not sink in much. A heavier older child or teenager is more likely to feel the benefit of the stable, supportive surface.
What size room do I need for a Vispring Bedstead Realm UK single?
We suggest at least 2.1m x 2.8m of floor space for a UK single. That leaves space to walk around the bed and open a wardrobe in a child's room or a spare room that also works as an office. If you want two UK singles in the same room, measure the walkway between them as well.
How much bigger is the UK double than the UK single Vispring Bedstead Realm?
The UK single is 45cm narrower than the UK double, and both sizes are the same length. The UK double gives 67.5cm each for two people sharing, and we suggest allowing at least 2.6m x 2.8m of floor space for a UK double. If you sleep alone and have the space, the UK double gives you room to spread out.
Is a UK single Vispring Bedstead Realm long enough for a tall teenager?
The UK single is 190cm long, or 6ft 3in. That is the same length as the UK double. If your teenager is already close to that height, the UK king is 10cm longer than the UK single, although it is a much wider bed that needs at least 2.7m x 2.9m of floor space.