Little oil like stains in a few places, does not come off after wash. Mattress sheet is too big.

I've been using these sheets for a month. The sheets fill really nice. It came and had some kind of oil stains on it. I've washed it but it still there. The mattress sheet is too big. Every morning to have to pull and straighten it out. I was hoping they were more fitted. Material feels really nice though.

###

