Not so much what it does (I'd have thought the clue lies in the words mattress and protector) but more to the point that Mom is trying to tell you that, well,I've fitted it, but wtf does it do?
I thought that's what bedsheets were for.I don't have a source for this but I've been told the human body sweats, or releases roughly a cup of sweat per night. Between that and skin cells and such its probably wise to keep something there to protect your matress.
It's like there's a church on the south end of town with a big sign outside with a photo of a woman and a caption that reads, "I Regret My Abortion". Though many feel it would be more accurate to read "I Regret Posing For Stock Photography".I'm wondering if the two kids on the picture knew what they were posing for.
Bedsheets don't have a rubberized, impenetrable layer. Make sure it's a nice one that has a nice soft feel to it. It's worth the extra money.I thought that's what bedsheets were for.