In the UK, a double-size bed is 135cm wide and 190cm long (approximately 53 inches wide and 75 inches long). That makes it wider than a queen size bed, aka a small double, which is 120 x 190cm ...

A full-size bed ... UK double and a full/double in the US. The next size up from a UK double is a UK king, which is 150cm x 200cm (approximately 60 x 79 inches). The next size down is a small ...

If you think you'd benefit from being able to adjust the position of your mattress, check out our guide on how to buy the best adjustable bed. A small double, or queen-size, mattress measures 120 x ...