Protecting rest across 12-hour shifts, rotating schedules, and the post-shift wind-down.
After a 12-hour shift, cortisol is still elevated and sleep onset can take 45+ minutes even when you\u2019re exhausted.
Switching between day and night weeks means your melatonin rhythm never stabilizes, producing chronic fatigue even on days off.
Two or three 12-hour shifts in a row compress sleep windows and push you into pure debt recovery mode.
For night shift nurses, bright sun on the drive home resets the circadian clock toward "morning" — exactly wrong.
A 7-hour 30-minute window wakes cleanly at 5 cycles for most sleepers. Don\u2019t round to "8 hours" — round to your cycle length.
Blocking blue light on the way home prevents the circadian reset and lets melatonin rise on schedule.
Even on off days, wake within 2 hours of your shift wake time. This is the single highest-leverage intervention for rotating schedules.
A 20-min nap between patient rounds or on a break can recover 30-40% of a 1-hour sleep deficit. Set a hard alarm — do not drift longer.
Day-shift (7 AM – 7 PM): • 10:30 PM – bedtime • 5:30 AM – wake • 6:00 AM – daylight + coffee • 7:00 AM – shift start Night-shift (7 PM – 7 AM): • 8:30 AM – bedtime (blackout curtains, sunglasses on commute) • 4:00 PM – wake • 4:30 PM – daylight + coffee • 7:00 PM – shift start
Every number on this page assumes you\u2019re an average sleeper. You probably aren\u2019t. Our 2-minute calculator gives you the exact bedtime that matches your cycle length — not the generic 90-minute assumption.
Start the calibration→The same 7–9 hours as any adult — but timing matters more. A rotating-shift nurse with only 7 hours on a consistent schedule will feel better than a stable-schedule nurse averaging 8 hours with variable bedtime.
Blackout curtains, a cool room (65–68°F / 18–20°C), silence or white noise, and crucially: sunglasses on the drive home to block the circadian reset signal.
Yes, but stop 5-6 hours before intended sleep time. For a 7 AM end-of-shift and 8:30 AM bedtime, the last coffee should be around 3 AM.
Yes. A 90-minute nap in the late afternoon before a night shift can meaningfully reduce mid-shift fatigue. Set an alarm — don\u2019t drift.
Wake within 1 hour of your shift wake time, even on off days. Compensate with an earlier bedtime if needed.