for ds small double size bed. I have a fogarty one now but it’s too big so makes the fitted sheet bumpy. Fitted sheets are 25cm deep. The protector is 30… I cannot find one that might be 25 or can anyone recommend another brand please that fits nicely? I’ve never had this problem with any other bed before, single double or king. I Wouldn’t say the mattress is thin, it’s just not 30 deep! Argos don’t have any, dunelm only Fogarty. Not waterproof or a topper, just a think quilted topper thing to put under a sheet. Thank you