Would have been a 5 star all the way around had the mattress not developed mold throughout the bottom of the mattress. Yes there was an allerease waterproof allergy something or other cover on it. The mattress was completely enclosed in the mattress protector and still managed to get filled with mold. Mattress protector or mattress itself to blame ? Idk it happened and I wasted $1200 at the time now these things are $500. I'm pretty sure I was dooped into buying a pos mattress. I will not buy ever again from Casper lol what a joke they are! No customer service they just could care less is all. Look elsewhere imo! Trying one that cost $200 here on Amazon. Will review that and let everyone know lol well tomorrow. God I love Prime Eat shatt AOC!