Does my bed have mites? And how do i get rid of them? im an extremely hygenic person but they wont go away...?

I hoovered the actual bed, all round it, sprayed flea and tick spray and no change, so might be something else, i have no idea. I havent been bitten or anything but it feels flea ridden, its disgusting. My bed has never been longer tha a week without getting changed. God knows what it is?