Un Doudou Baby Cool Touch Waterproof Sheet 70 x 120 cm Disney Pooh & Friends - Set of 2 sheets with elastic corners. Since these were used only a few times, I don't think there are any noticeable stains or stretched elastic. There are some wrinkles from storage and the scent of fabric softener remains, so please wash them before use if you are concerned. We do not have any pets or smokers. Thank you.