I do one of two things before I leave a hotel room.. When I leave something somewhere I don't normally, because of the hotel room layout, I write a note/checklist to remind myself (I leave the note on the top, inside my bag).
The other is 'Waltering' the room, if I may adopt the term.
Re pulling the sheets and doona back off the bed, it brings to mind an incident many² years ago. My then fiance and I (both at uni) did a package tour of the South Island NZ. At the Commodore Christchurch, we were each given a tour bag at the welcome drinks the night before. She decided to pack our jumpers in one of the new bag.
When we boarded the tour bus, the driver/tour leader observed the loaded bag she was carrying. Our departure was somewhat delayed. Unbeknownst to me then, he notfied the hotel we may have pilfered from the room.
A thorough check of our room for any missing items was conducted. The manager came back to the bus a long time later and told him everthing was as it should have been. Then she added, they must have been hard at it because the top sheet and blankets (yes in those days) were off the bed.
I will never forget his response to that (just because we were young on a bus otherwise occupied by retirees). He said to her straight faced, 'Do you want me to send them back to the room to make the bed up'. Luckily for us, she replied aghast "oh no, we have to strip the bed to change the sheets anyway. In fact they did us a favour half stripping the bed '. There you go, be aware what the inference from small minded people might be if the top sheet et al is not where they expect.