KANECH 44"x52" Washable Waterproof Bed Pads (2 Pack) – Reusable Incontinence Bed Pads Hold 10 Cups, Non-Slip & Silent Mattress Protector for Adults, Kids, Elderly and Dogs

I have a waterproof mattress topper and underneath that I have washable waterproof pads meant for incontinence. They do add some bulk but it’s stopped my mattress from getting full of sweat. (These are the pads: https://www.amazon.com/dp/B0BWWJYPLQ/ref=sspa_mw_detail_2?ie=UTF8&psc=1&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9kZXRhaWw )