Is the hotel quilt not washed because it smells of smoke?

It's possible. The following is the way to identify whether the hotel quilt has been washed:

1. See if there are any new creases on the sheets.

2. Is it hard to touch the sheets?

3. Smell the sheets for mildew or smoke. If the hotel customer service tells you that the sheets are self-washing, they usually smell of sunshine.

4. Spread out the sheets and check whether there are foreign bodies such as hair.

5. Whether it is easy to unfold by shaking the sheets.