YSK not all mattresses (or anything similar) with a zipper are meant to have the outer layer removed and washed.
from /r/YouShouldKnow
YSK并不是所有带拉链的床垫(或类似的东西)都是要去掉外层并清洗的。
YSK并不是所有带拉链的床垫(或类似的东西)都是要去掉外层并清洗的。
YSK not all mattresses (or anything similar) with a zipper are meant to have the outer layer removed and washed.
from /r/YouShouldKnow