I've given up giving people sleep tips on Lemmy. You go into any detail or suggest they have to change their habits, and they react like you killed their dog.
No sleep tips I followed ever made me feel rested if I went to sleep before 12PM. The only way is to take a nap and sleep from 1AM to 7AM. Nobody suggests doing that though, for some reason...
Gotta acknowledge that these tips work for people who have average sleep habits, ones least likely to have bad sleep habits.