Key takeaways: Black Friday is officially here, bringing the best mattress deals from the UK’s top sleep tech brands. This year’s Black Friday mattress sales are packed with generous discounts from some of our favourite sleep tech brands, featuring everything from supportive memory foam and pocket-sprung models to luxurious hybrid options — including the best mattress for side sleepers — all at prices that are hard to beat. With Emma mattresses consistently earning glowing reviews from our testers year after year, it’s no wonder they’re among the most in-demand deals every Black Friday.