the plain version
Sleep Hygiene
Most of sleep advice is noise. A handful of habits do nearly all the work, and they're boring, which is exactly why they get skipped. Here is the short, honest list.
What actually helps
Four that carry the weight
Keep one wake time
The single most powerful lever. Wake at the same hour every day, weekends included, and your body learns when to get sleepy. A regular wake time fixes a ragged bedtime on its own.
Get morning light
Daylight in the first hour, even through a window, sets your internal clock and earns you sleepiness fourteen-some hours later. Dark mornings make for restless nights.
Cool and dark
A cool room (around 65°F / 18°C) and real darkness tell the body it's night. Blackout the room or wear a mask; even small light delays the sleep hormone.
Wind down for real
Give yourself thirty to sixty minutes of dim, slow, screen-light evening before bed. The body can't slam on the brakes; it needs the off-ramp.
What quietly steals it
The usual thieves
Late caffeine. Coffee's , so an afternoon cup is still in you at midnight. Cut it off by early afternoon.
The nightcap. Alcohol knocks you out, then fragments the second half of the night and flattens REM, so you wake unrested and remember fewer dreams.
Bright screens.Not only the blue light, but the engagement, the feed that won't let the mind power down. Put the phone across the room and use a paper book instead.
Lying there awake.If sleep won't come in twenty minutes, get up, keep the lights low, do something dull, and return when sleepy. Don't train the bed as a place for frustration.
Pick one to change this week, the wake time, if you're choosing. Sleep rewards consistency more than any trick, tea, or gadget.
Put it into practice with a bedtime ritual and the wind-down timer.