Wentworth Mercer Premium Silk 11000 Pocket Mattress
Mattress
Wentworth Mercer Premium Silk 11000 Pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
28
Layers
6
Layer Details
- Silk. A luxurious natural fibre that gives the sleep surface a sumptuous, breathable feel. It stays resilient over time rather than flattening quickly.
- Wool. Wool is a natural insulator with good temperature regulation, which means it helps keep you comfortable all year round. Cosy in winter, breathable in summer.
- Cotton. Natural cotton fibres wick moisture away from your body and help regulate temperature. The result is a fresher-feeling sleep surface, especially if you run warm.
- Soft White Fibres. Soft synthetic fillings add a cosy, cushioned feel to the comfort layers. They are durable and hold their shape well.
- Mini Pocket Springs. Small individually cased springs sit near the surface for added comfort and gentle pressure relief. They also cut down motion transfer, so you feel less of a partner's movement.
- Pocket Springs. The main support layer: individual springs encased in cloth pockets that respond to each part of your body separately. That means more tailored support along your spine than a traditional open-coil system gives.
Layer details from mattressonline.co.uk product page, September 2026.
- A compact footprint: At 3ft x 6ft 3in, the UK single leaves room for a wardrobe or desk in a small bedroom, and we suggest at least 2.1m x 2.8m of floor space.
- Premium fillings for one: Silk, wool and cotton sit on top of the springs, which means a solo sleeper gets the same breathable natural surface as the larger sizes.
- Two singles for guests: Two UK singles side by side let a spare room take friends or siblings who would rather not share a bed.
- Fits under a sloping ceiling: If you are furnishing a loft conversion, the 90cm width lets you tuck the bed under the slope and keep the taller part of the room clear.
- Sprung support that adapts: Individually pocketed springs respond to each part of the body separately, which helps a growing teenager's spine stay better aligned than it would on open coils.
This size suits you if...
You sleep alone and want a natural-filled mattress in a small room, or you are buying for a child or teenager who has outgrown a junior bed. It also suits a guest room where two UK singles side by side are more useful than one larger bed.
Consider another size if...
You share the bed, or you like room to sprawl. The UK small double would suit you better, and we suggest at least 2.4m x 2.8m for it.
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Can I use the Wentworth Mercer Premium Silk 11000 UK single on a bunk bed?
Check first. This mattress is 28cm deep, which is thicker than many bunk, cabin and mid sleeper frames are designed to take. Raised frames usually state a maximum mattress depth so the guard rail stays high enough to be safe. If your frame's limit is below 28cm, a slimmer mattress would be the safer choice for the top bunk.
What size room do I need for a UK single Wentworth Mercer Premium Silk 11000?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves you room to walk around the bed and open a wardrobe or drawers. In a child's room with a desk and toy storage as well, a little more space than our minimum will make the room feel less crowded.
Is a UK single big enough for an adult on this mattress?
For most solo adults, yes. The UK single measures 90 x 190cm, which is enough for one person who sleeps fairly still. If you are tall, a UK king is 10cm longer, but it is a two-person size. If you toss and turn, the UK small double gives you 30cm more width at the same length.
UK single or UK small double: which Wentworth Mercer Premium Silk 11000 should I choose?
The UK single is 30cm narrower than the UK small double, and both are the same length. Choose the UK single if floor space is tight or the bed is for a child. The UK small double suits a solo adult who wants more room to spread out, and we suggest at least 2.4m x 2.8m for it.
Will single bedding fit a 28cm deep mattress?
A single duvet will fit, but the depth of the fitted sheet matters more. Because this mattress is 28cm deep, a shallow single fitted sheet may pull off at the corners. Look for fitted sheets labelled deep or extra deep, and check the pocket depth on the packaging before you buy.