Wentworth Mercer Premium 9000 Pocket Pillow Top Small Double Mattress
The Wentworth Mercer Premium 9000 Pocket Pillow Top Mattress layers a plush pillow top with mini pocket springs over a pocket spring core, which means a sink-in surface with medium support beneath.
- Plush sink-in pillow top feel
- Supportive reinforced edges
- Natural wool, cotton & silk filling
£1,599
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Wentworth Mercer Premium 9000 Pocket Pillow Top Mattress
More available sizes
Mattress details
Mattress
Wentworth Mercer Premium 9000 Pocket Pillow Top Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Wool
Depth (cm)
34
Layers
2
Layer Details
Pillow top comfort layer
A plush pillow top packed with natural fibres and mini springs, giving a sink-in feel. It means a soft, cushioned surface that eases you into the mattress.
Pocket spring core
1,000 traditional pocket springs form the heart of the mattress, with 8,000 mini pocket springs blended into the comfort filling layers. That gives the medium feel and a supportive base under the softer top.
Layer details from wentworthandmercer.com product page, October 2026.
Key benefits
- Room to spread out alone: The UK small double is 30cm wider than the UK single, which means a solo sleeper can turn over or sleep diagonally without hitting the edge.
- Fits tighter bedrooms: Being 15cm narrower than the UK double leaves a little more floor beside the bed, which can be the difference between a door that opens fully and one that catches the frame.
- Firmer sides for a narrower bed: The reinforced edge with butterfly border springs suits a UK small double, where you sleep nearer the sides and often sit on the bed in a small room.
- Cushioned top for one: The pillow top of natural fibres and mini springs gives a soft, sink-in surface, so a lone sleeper gets a hotel-style feel in a compact footprint.
- Easy to dress: UK small double fitted sheets fit, and a standard double duvet gives generous overhang, although at 34cm deep you'll want sheets that list a deep pocket.
This size suits you if...
You sleep alone and feel cramped on a single, your bedroom is a box room, loft conversion or compact double where a UK double would leave you squeezing past it, or you're kitting out a guest room that hosts a couple now and then rather than every night.
Consider another size if...
You share the bed every night with a partner. 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 it.
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FAQ's
Is the Wentworth Mercer Premium 9000 small double big enough for two people?
For a weekend guest couple, yes, it's workable. For nightly sharing it's tight, and the soft pillow top means you may roll slightly towards each other. If two of you will sleep on it every night, the UK double is 15cm wider and gives 67.5cm each for two sharing.
What size bedroom do I need for a UK small double pillow top mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves space to walk around the bed and open a wardrobe or door. In a loft conversion with sloping ceilings, measure the floor where you can stand upright, since the 34cm depth plus a frame makes the bed sit fairly high.
What sheets and duvet fit a 34cm deep small double mattress?
Use UK small double (4ft) fitted sheets with a standard double duvet. The size is common, so bedding is easy to find, but this mattress is 34cm deep, so check the pocket depth on fitted sheets before you buy. Shallow sheets tend to ping off the corners of a pillow top.
Should I get a single or small double for a teenager who has outgrown their bed?
A UK small double is 30cm wider than a UK single and the same length, so a growing teenager gains width rather than legroom. If the room is very small, the UK single needs at least 2.1m x 2.8m by our guidance, against 2.4m x 2.8m for the UK small double.
Small double or double: which Wentworth Mercer Premium 9000 should I buy?
Choose the UK small double if you mostly sleep alone or your room is under our suggested 2.6m x 2.8m for a UK double. Both are the same length, so the only change is the 15cm of width. Couples sharing nightly will be more comfortable on the UK double.