It is a perfect snug fit. Don’t even notice it is on the bed. But I have the peace of mind that my new mattress is safe from damage by my kids or pets.
I bought this protector after my previous mattress pad (advertised as "cooling") was very hot. This protector keeps my mattress protected without turning the bed into a trapper for heat.
This cover is very well made. I would expect it to have a long life My only complaint is that it "bunches up" under the sheet and is uncomfortable because of this. I will be looking for some kind of tether to help keep the cover tight.