How to fix your sleep schedule

Sleeping at 2 AM and waking at 10? You can move your body clock, but slowly. Here's a plan that works without misery.

Your body clock, the circadian rhythm, runs on a cycle slightly longer than 24 hours. Left alone, most people drift later. What keeps it in place is a handful of daily signals, the strongest being light. Fixing a messed-up schedule is mostly about controlling those signals.

The rule that matters most

Fix your wake-up time first, not your bedtime. You can't force yourself to fall asleep, but you can get up at the same time. Do that every day, and your body starts getting sleepy at the right time in the evening.

The two-week plan

Days 1 to 3: set the anchor

  • Pick a target wake-up time you can keep seven days a week.
  • If you currently wake at 10 and want 6:30, don't jump. Start at 9:30.
  • Within 15 minutes of waking, get outdoor light for 15 to 30 minutes. A balcony, a walk to the chai stall, the terrace. Indoor light is far too weak.

Days 4 to 10: walk it back

  • Every two or three days, move your wake-up time 15 to 30 minutes earlier.
  • Go to bed when you're sleepy, but no later than your calculated bedtime.
  • Dim the house an hour before bed. Switch off overhead tube lights, use lamps.
  • Stop caffeine at least six hours before your target bedtime.

Days 11 to 14: lock it in

  • Keep the same wake-up time on the weekend, within 30 minutes.
  • No naps longer than 20 minutes, and none after 3 PM.
  • Expect a wobble. One late night doesn't undo the work. Just get up at the usual time the next day.

Things that quietly undo the reset

  • The phone in bed. It's not just the light. Each reel or message keeps your brain alert. Charge it outside the bedroom.
  • Late, heavy dinners. Common in Indian households, and one of the biggest reasons people can't sleep before midnight.
  • Weekend lie-ins. Sleeping three extra hours on Sunday moves your body clock later, and Monday feels like jet lag.
  • Lying in bed awake. If you're still awake after about 20 minutes, get up, sit in dim light, read something boring, and return when drowsy.

When it isn't a schedule problem

If you've followed a consistent schedule for a few weeks and still can't fall asleep, wake up repeatedly, or feel exhausted all day, talk to a doctor. Insomnia, sleep apnoea, thyroid problems, anxiety and depression all affect sleep and are treatable.