Sleep 10 - Action - Use a blindfold / sleep mask.
Is light at night an issue? Flashing car lights from outside, street lights., bright sunlight or moon light a problem. Use a blindfold / sleep mask.
"Trouble Sleeping? A Sleep Mask Could Be a Game-Changer"
https://www.healthline.com/health/sleep-mask-game-changer#what-to-look-for
One I've bought
https://www.amazon.co.uk/dp/B09FY9QQV8/
[Though incredibly comfortable I have a habit of casting it off in the middle of the night without realising. Not really sure how to remedy that]