Silentnight Comfortable Foam Mattress
- The traditional couples' size: At 135 x 190cm (4ft 6in x 6ft 3in), the UK double has been Britain's standard shared bed for decades, and this soft foam suits two side sleepers well.
- Motion absorption matters more when sharing: All-foam construction soaks up movement, which means at double width you're less likely to feel a partner turning over just 67.5cm away.
- Fits most bedrooms with furniture to spare: We suggest a room of at least 2.6m x 2.8m, which usually leaves space for bedside tables on both sides and a wardrobe.
- Easy to dress cheaply: Double sheets and a 200 x 200cm duvet are stocked everywhere at every price point, useful if you're kitting out a whole flat on a tight budget.
- A sensible guest room size: A soft double handles visiting couples and solo guests alike, without dominating a second bedroom the way a UK king would.
This size suits you if...
You share the bed every night and want the standard couples' size without giving a bigger room over to a UK king; you're furnishing a first flat or guest room on a modest budget and both of you sleep on your side; or you sleep alone, perhaps with a dog or cat claiming a corner, and want space to spread out.
Consider another size if...
You and your partner are both broader in the shoulder, or one of you is a heavier body who needs more surface to avoid crowding onto the softer edges. We'd recommend the UK king instead, 15cm wider and 10cm longer, allowing a room of at least 2.7m x 2.9m.
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Is a UK double Silentnight Comfortable Foam Mattress big enough for two adults?
For most couples, yes. The UK double gives 67.5cm each for two people sharing, and because this is a soft foam mattress that absorbs movement, disturbance from a partner is reduced. Two side sleepers of lighter or average build will manage comfortably. Broader couples, or anyone who sprawls, may find a UK king less of a squeeze.
Will a double fit in a small second bedroom with other furniture?
Usually. We suggest a room of at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm. That typically leaves enough space for a wardrobe, a chest of drawers and a bedside table on each side, which is why the double remains the default for second bedrooms and first flats.
Is a soft foam mattress a good choice in a double for guests?
It works well for a guest room. A UK double accommodates visiting couples as well as solo guests, and a soft feel suits side sleepers, the most common sleeping position. The main caveat: heavier guests or committed front sleepers may find soft foam lacks the support they're used to, though for occasional stays that matters less.
Should I get the double or size up to the king in this mattress?
The UK double is 15cm narrower and 10cm shorter than the UK king. If your room is at least 2.7m x 2.9m and you both like space, the UK king is the more comfortable long-term choice for couples. If your room is closer to our 2.6m x 2.8m double minimum, the UK double keeps walking space around the bed.
What bedding do I need for the double version?
Standard UK double bedding: sheets sized for 135 x 190cm, and a 200 x 200cm double duvet. Double bedding is the most widely stocked size in the UK, so you'll find it at every price level, a small but genuine saving if you're setting up a home from scratch.