Wentworth Mercer Deluxe Naturals 5000 Pocket Double Mattress
The Wentworth Mercer Deluxe Naturals 5000 is a soft to medium pocket spring mattress with natural wool and cotton fillings, handcrafted in the UK.
- Cool in summer, warm in winter
- Minimises partner disturbance
- Gentle feel suits side sleepers
£999
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Wentworth Mercer Deluxe Naturals 5000 Pocket Mattress
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Mattress details
Mattress
Wentworth Mercer Deluxe Naturals 5000 Pocket Mattress
Size
Firmness
Medium Soft
Construction
Pocket Spring
Wool
Depth (cm)
29
Layers
4
Layer Details
Wool
Natural wool fibres with temperature regulating properties, which means the mattress helps you stay cool in summer and warm in winter. Wool is a genuinely useful top layer for anyone who runs hot at night.
Cotton
Natural cotton fibres keep the sleeping surface fresh, regulating body temperature and wicking away moisture. In practice, this means a drier, more breathable feel than all-synthetic comfort layers.
Soft White Fibres
Soft synthetic fillings that create a cosy, cushioned feel. They're durable and resilient, so the layer should hold its shape rather than flattening quickly.
Pocket Springs Support System
5000 pocket springs made from twice tempered steel, each encased in its own fabric pocket so it moves independently. That means support that follows your body's shape, with less motion transfer across the bed.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Room to share in a modest footprint: At 135 x 190cm, the UK double gives two sleepers 67.5cm each while leaving floor space for a wardrobe and drawers in a typical bedroom.
- Less disturbance at close quarters: The 5000 pocket springs move independently, which matters more on a UK double because you and your partner lie nearer each other than on a UK king.
- Cooler when two share the heat: Two bodies in 135cm of width build up warmth, and the wool and cotton fillings help draw moisture away so the bed feels less clammy by morning.
- Space for bedside tables: The UK double is 15cm narrower than the UK king, which is often enough to fit a bedside table on each side in a room of about 2.6m x 2.8m.
- Gentle feel for side-by-side sleeping: The soft to medium surface cushions shoulders and hips, which suits couples who both sleep on their side and face the same way.
This size suits you if...
You share a bed with a partner in a standard UK bedroom and want each of you to have a bedside table, or you're setting up a guest room where visiting couples will stay a night or two, and you both prefer a soft, cushioned feel.
Consider another size if...
Either of you sleeps starfished or you regularly wake each other. We'd recommend the UK king instead, and suggest at least 2.7m x 2.9m for the UK king.
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FAQ's
Is the Deluxe Naturals 5000 UK double wide enough for two people?
For most couples, yes. The UK double gives 67.5cm each for two sharing, which is comfortable if you both sleep fairly still. If one of you spreads out, the UK king adds 7.5cm each, and the springs' independent movement helps less when you simply run out of room.
What size bedroom do I need for a Wentworth Mercer UK double?
We suggest at least 2.6m x 2.8m for this mattress in a UK double, with around 3m x 3m the more comfortable norm if you want space to walk round the bed and open wardrobe doors easily.
Deluxe Naturals 5000 UK double or UK king for a couple?
The UK king is 15cm wider and 10cm shorter than... rather, the UK double is 15cm narrower and 10cm shorter than the UK king. Choose the UK double if your room is tight or you want bedside tables both sides; choose the UK king, for which we suggest at least 2.7m x 2.9m, if either of you is tall or restless.
Is the UK double too short for tall sleepers?
It can be. The UK double is 190cm long, the same length as the UK single and UK small double, and 10cm shorter than the UK king. If either of you is tall enough for your feet to reach the end, the UK king gives that extra length.
Is a UK double Deluxe Naturals 5000 a good choice for a guest room?
It suits a guest room well. The UK double fits visiting couples comfortably for a few nights in a smaller room, and the soft to medium feel is forgiving for most guests, although heavier back or front sleepers may find it a little too yielding.