The Revolution mattress topper is designed with customisable comfort levels on each side of the topper, so you never have to compromise on comfort again. Do you prefer a softer feel, but your partner wants a firmer surface? No problem, simply unzip the luxurious cover to reveal the two personal topper cores inside, both with a softer and firmer side. Both sides are proven to eliminate pressure hot spots which are known to cause aches and pains. Comes with extra wide, adjustable, elasticated straps to hold your topper firmly in place all night long. Encased in an anti-allergy luxury cover.