Find out who really makes the most comfortable mattresses, plus who's on top for customer satisfaction and value for money. We also reveal what the UK's most popular sleeping positions are.
Find out how mattresses from Casper, Eve and Sealy fare in our warmth tests. Go for the best bedding and electric blanket to really wrap up warm this winter.
If you're looking for a new mattress, our survey results on the best and worst mattress brands and mattress retailers will help you decide where to shop.
Which is the best mattress brand for 2018? New entries Casper and Simba face high-street favourites John Lewis, Dreams, Silentnight and more in the annual Which? survey
Which? reveals the best mattress brands of 2017. Find out how memory foam mattress brands such as Tempur compare with Ikea, John Lewis and Sealy.