Sleep for night-shift workers, nurses and drivers

Working nights fights against your body's natural circadian rhythm, which stays wired to expect daylight activity and nighttime sleep no matter what your schedule says. You can't fully cancel that mismatch, but a few concrete habits make a real difference.

Protect your sleep opportunity

Treat daytime sleep with the same seriousness as nighttime sleep would get: full blackout curtains or a sleep mask, earplugs or white noise to mask daytime household and street sounds, and a consistent sleep window you protect from errands, calls and notifications. Tell housemates or family your sleep hours so they can help keep things quiet.

Time caffeine strategically

Caffeine early in the shift can help you push through the low-alertness window, but taken too late it will delay your ability to fall asleep once you're home. As a rule of thumb, avoid caffeine in the final third of your shift. Our caffeine calculator can help you see how much is likely still active in your system by the time you want to sleep.

Use naps strategically

A short nap before a night shift (even 20-30 minutes in the late afternoon) reduces sleepiness during the shift. A brief nap during a break, where policy allows it, can also help. Avoid long naps right before the shift starts, which can leave you groggy from sleep inertia — see our nap calculator for ideal durations.

Manage light exposure

Bright light during your shift helps keep you alert and signals "daytime" to your body clock. On the way home, wear sunglasses to limit morning sunlight exposure, since bright light at that point delays your body's readiness to fall asleep. Keep your bedroom dark and dim household lighting in the hour before your daytime sleep.

A safety note for drivers

Drowsy driving is a real risk after a night shift, comparable in impairment to driving under the influence in some studies. If you feel drowsy driving home, pull over for a short nap, use public transport or a rideshare when possible, and never push through severe sleepiness behind the wheel.