This is like saying you can't believe gravity exists and need references.
I mean, haven't checked about weed as I don't use it, but about alcohol it's one of the most well know facts about it, and there are tons of studies, and mentions in every major work about sleep quality, academic or layman level...
Limit alcohol, because alcohol is not a sleep aid, contrary to popular belief. While it might help induce sleep, “alcohol is one of the most powerful suppressors of REM [rapid-eye-movement] sleep,” Walker says:
I mean, haven't checked about weed as I don't use it, but about alcohol it's one of the most well know facts about it, and there are tons of studies, and mentions in every major work about sleep quality, academic or layman level...
https://sleep.me/post/alcohol-and-sleep
https://www.sleepfoundation.org/nutrition/alcohol-and-sleep
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5821259/
https://thesleepdoctor.com/alcohol-and-sleep/
https://pubmed.ncbi.nlm.nih.gov/29073429/
https://pubmed.ncbi.nlm.nih.gov/25499829/
Limit alcohol, because alcohol is not a sleep aid, contrary to popular belief. While it might help induce sleep, “alcohol is one of the most powerful suppressors of REM [rapid-eye-movement] sleep,” Walker says:
https://www.amazon.com/Why-We-Sleep-Unlocking-Dreams/dp/1501...