Wentworth Mercer Premium Naturals 8000 Pocket Mattress
Mattress
Wentworth Mercer Premium Naturals 8000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
32
Layers
3
Layer Details
- Comfort fillings. Natural wool and cotton fillings sit at the top, finely layered for a cosy surface feel. Beneath them, 7000 mini pocket springs add a sumptuous, cushioned quality without softening the underlying support.
- Support system. The core is 1000 traditional pocket springs, each encased in its own fabric pocket. Every spring reacts independently to your body shape, which means support where you need it and less disturbance from a partner's movement.
- Edge support. Butterfly springs around the border create a sturdy edge, backed by a rod frame that secures the spring system right to the perimeter. In practice, this means you can use the full width of the bed and sitting on the edge feels stable.
Layer details from mattressonline.co.uk product page, September 2026.
- Space to sprawl on your own: At 30cm wider than the UK single, you can turn from your back to your side without finding the edge, which matters if you sleep restlessly.
- Edges you can sleep on: Butterfly springs and a rod frame firm up the border, which suits a narrower bed where you spend more of the night close to the sides.
- Fits rooms a double would crowd: Being 15cm narrower than the UK double can decide whether a wardrobe door opens fully or catches on the bed frame in a compact room.
- Breathable in a small, warm room: Natural wool and cotton fillings let air move, a real help in a snug bedroom such as a loft conversion where heat tends to gather.
- Easy to dress and frame: The 4ft width is a standard UK size, so you shouldn't struggle to find a bed frame or fitted sheets to go with it.
This size suits you if...
You sleep alone and want room to roll over, your bedroom can spare a little more floor than a single needs but not what a double takes, or you're kitting out a guest room where couples stay only now and then.
Consider another size if...
You and a partner plan to share the bed every night. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest at least 2.6m x 2.8m for the UK double.
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Is the Wentworth Mercer Premium Naturals 8000 small double a good upgrade for a teenager?
It suits a teenager who has outgrown a single well. The UK small double adds 30cm of width but keeps the same length as the UK single, so it takes up less extra floor than you might expect. The pocket springs give steady support, and the sturdy edges help in a smaller room where the bed sits close to a wall.
What size bedroom do I need for a UK small double mattress?
We suggest allowing at least 2.4m x 2.8m for the UK small double. That leaves space to walk round the bed and open drawers. The mattress is also 32cm deep, so add your frame height when you check it against windowsills or low shelves.
Will the Premium Naturals 8000 in a UK small double fit a loft conversion?
Often, yes, as the narrower footprint helps where a sloping ceiling eats into usable floor. Measure the headroom where the long edge of the bed will sit, as you may end up sleeping near the lower side. The reinforced border means that edge stays supportive rather than dipping.
Should I choose the small double or double in the Wentworth Mercer Premium Naturals 8000?
Pick the UK small double if you mostly sleep alone or your room is tight. Choose the UK double if two of you share nightly, as it gives 67.5cm each for two sharing. The feel and construction are identical, so the decision comes down to who sleeps in it and how much floor you can spare.
Is a UK small double long enough if I'm tall?
The UK small double is 190cm long, the same length as the UK single and UK double. If your feet already reach the end of a standard bed, the UK king is 10cm longer, though it is also 30cm wider, so we suggest at least 2.7m x 2.9m for the UK king.