I have had sleep issues my whole life, but what works for me is: - Get up same time every day - Moderate excersize every other day - Stable diet, homecooked healthy food and no soda/beer/candy whatsoever. - Dim the lights after dinner - No screens after 8pm (e-ink screens are allowed), no podcasts, no digital content consuming. - Actively aim to be bored everyday - Read a good book before bedtime

May sound like a lot, but I sleep now.