Medieval people were "weird" in many aspects:

1. Two 'sleeps"-"first sleep", than a long period of wakefulness, then a 'second sleep'.
https://www.medievalists.net/2016/01/how-did-people-sleep-in-the-middle-ages/

2. They slept often several people in one bed, including the master, master's wife and servants...I don't think it was for sex...mostly, but what do I know.
https://www.atlasobscura.com/articles/communal-sleeping-history-sharing-bed

3. Toilets in the castle...oh, my.
https://www.worldhistory.org/article/1239/toilets-in-a-medieval-castle/

4. Women removing eyebrows and eyelashes, so their faces would be totally hairless (see other 111 strange habits in the link below).