Alcohol: Borrowed Sleep
Insight
Alcohol is the most common sleep aid that isn't one. It sedates the onset — you fall asleep fast — and then fragments the second half of the night, once the body finishes processing it.
Why it works
Sedation and sleep are different states. Alcohol suppresses the deep, restorative stages and often triggers 3 am waking, so the morning arrives with hours logged but little of the repair that matters.
Practical takeaway
Run the experiment yourself: two alcohol-free nights this week, ideally consecutive, and compare how you feel on waking. The data will be more persuasive than any argument.
Good question to ask someone
What have your best and worst sleeps this month had in common?