Switching from night shift to day shift

Two ways to flip — pick by your calendar

• Fast flip (24–48 hours): one uncomfortable transition day, then you're on days. Best when you have at least two days off or you're changing rotations for good.
• Gradual flip (3–5 days): move your sleep 1–2 hours later each day until it lands on a day schedule. Gentler, but it eats more days off — best for permanent schedule changes with a runway.

The last night shift: don't sleep it away

After your final night, take a short nap — 2 to 3 hours, no more — in the morning. Set an alarm and mean it. Then get up, get outside, and run the rest of the day like a day: meals at day times, people, light, movement. You'll be tired by evening, and that tiredness is the tool — it powers an early, deep first night of day-schedule sleep.

Sleeping 8 hours after the last night shift feels amazing and costs you the entire flip: you'll be wide awake at midnight and start the next day already behind.

Light is the steering wheel

• Bright light early — a morning walk is the single best flip tool there is. An hour outside beats any supplement.
• Dim evenings — lamps, not overheads, for the last 2 hours before your new bedtime.
• Blue-blockers are for staying on nights. On the flip to days, you want the morning light — don't block it.

Caffeine and melatonin during the flip

Caffeine goes back to mornings only while you flip — nothing after midday, or the early bedtime you're counting on won't happen. Melatonin timing moves with the target schedule (earlier, toward the new evening); doses and timing are worth a quick clinician or pharmacist check, especially alongside other medications. This page is a planning guide, not a prescription.

The first week on days

• Hold the wake time fixed — even on days off. The wake time is the anchor now.
• Expect 3–5 days before you feel genuinely normal. Day 2 is usually the worst, not day 1.
• Keep the dark, cool room. Day sleep habits built the bedroom; they still serve day sleep.