A small double, or queen-size, mattress measures 120 x 190cm (approximately ... All the Ikea mattresses we test are standard UK double mattress size (135 x 190cm), although the thickness can vary. See ...

It might come as a surprise but mattress sizes are different depending on which country you're in. Whether you're shopping in the UK, US and EU, you need to take care when you're buying the best ...