Night Shift Survival Guide for New Nurses: Sleep, Caffeine, Food, and Switching Back

Many new nurses start on nights. Nobody hands you a sleep plan with your badge, and the advice you get in the break room ranges from useful to dangerous. This guide sticks to what the evidence supports, mostly from the National Institute for Occupational Safety and Health’s free course Training for Nurses on Shift Work and Long Work Hours (NIOSH Publication 2015-115), which was written for nurses and their managers.

Your body clock will not fully flip, and that is normal. The goal is to protect enough sleep, stay alert for the patient in front of you, and get home safely.

Before your first night: nap, don’t pull an all-nighter

A common mistake is staying up all day so you will “sleep well” after the shift. NIOSH advises against this: sleep whenever you can before your first night, including a nap. It describes a longer “prophylactic” nap before a night shift, usually a few hours in the afternoon or early evening. The American Academy of Sleep Medicine (AASM), as cited in the NIOSH course, recommends planned naps before and during night shifts for people who struggle with shift work.

• Short naps (about 20 minutes) end before deep sleep, so you wake up less groggy.
• Longer naps (about 90 minutes) can cover a full sleep cycle. Waking around the one-hour mark, in deep sleep, tends to cause the most sleep inertia.
• Grogginess typically fades in 15 to 30 minutes, so do not wake up as report starts.

During the shift: light early, dimmer late

Light is the strongest signal your body clock reads. NIOSH suggests spending as much of the first half of the shift as you can in brightly lit areas to boost alertness, then reducing bright light in the second half so it is easier to sleep when you get home. The exception: if you are dangerously sleepy, bright light can help you stay alert.

Caffeine: early in the shift, then stop

Caffeine lasts longer than most people think. NIOSH lists its half-life at roughly 5 to 6 hours, so a late coffee can still be active when you lie down. In a small sleep-lab study published in the Journal of Clinical Sleep Medicine (Drake et al., 2013), caffeine taken even 6 hours before bed measurably cut total sleep, and participants often did not notice.

• Front-load caffeine near the start of the shift.
• Stop about 6 hours before your planned sleep time.
• Use it strategically, not all night. NIOSH notes that heavy daily use can blunt its alerting effect.

Food: lighter overnight, small breakfast before bed

Your digestive tract is not built for a big meal at 3 a.m. NIOSH links night eating to gastrointestinal symptoms and metabolic risk and suggests:

• Eat less between midnight and 6 a.m. where you can, choosing lighter options like soup, fruit, yogurt, eggs, or nuts.
• Limit sugary, low-fiber snacks; they can make sleepiness worse.
• Skip heavy, fatty, or spicy food, and avoid a large meal in the 1 to 2 hours before sleep.
• Eat a small breakfast before daytime sleep so hunger does not wake you.

The drive home is the most dangerous part of the shift

NIOSH devotes a full module to drowsy driving. Learn the warning signs: heavy eyelids, repeated yawning, drifting out of your lane or hitting a rumble strip, missing an exit, or not remembering the last few miles. If you are very sleepy, do not drive. Instead:

• Ask a family member, friend, or coworker for a ride, or use a rideshare, taxi, or transit.
• Take a short nap before you leave. NIOSH notes even 15 to 20 minutes in a safe place can help, and caffeine followed by a short nap is a temporary aid because caffeine takes about 30 minutes to kick in.

On sunglasses, NIOSH is nuanced: dark or blue-light-blocking wraparounds on the way home can help you fall asleep later, but they also block light that is keeping you awake. If you are very sleepy, wear them only when someone else is driving.

Sleeping during the day: make your room a cave

NIOSH describes the ideal sleep space as very dark, quiet, cool, and comfortable. In practice:

• Use room-darkening shades or lined curtains and seal the light gaps around the edges.
• Block light under the door and remove glowing screens and clocks, or wear an eye mask.
• Silence your phone and tell the people you live with when your sleep hours are.
• Go to bed soon after you get home, and get as much sleep as you can in the morning hours. Save errands for later in the day.

Anchor sleep helps if you work nights regularly. NIOSH suggests keeping one block of sleep at the same time every day, on work days and days off, so your body gets some consistent sleep each 24 hours.

Switching back to days

After your last night, do not stay awake the entire next day. NIOSH warns that long stretches without sleep raise accident and health risks. A common approach is a shorter morning sleep, then getting up, getting daylight, and going to bed close to your usual bedtime that night.

If you work nights most of the time, NIOSH suggests a compromise on days off rather than fully flipping back every weekend: stay up later and sleep later, keeping part of your anchor sleep. Flipping completely back and forth can leave you feeling jet-lagged all the time.

What not to use as a sleep aid

• Alcohol. It can make you fall asleep faster, but NIOSH notes it causes awakenings later in the sleep period, so the sleep is less restorative.
• Over-the-counter sleep aids and melatonin. Most OTC sleep aids are antihistamines that can leave you drowsy for hours, and melatonin is a supplement whose effect depends heavily on timing. Talk with your health care provider before using either, and see a sleep specialist if you are sleepy at work or driving despite these steps.

Your first-week-of-nights checklist

1. Build your plan in the sleep planner and put the nap and caffeine cutoff in your phone.
2. Black out your bedroom before your first shift, not after.
3. Decide your no-drive backup ride now, while you are rested.
4. Check the first-year section of your specialty home, for example med-surg or ICU, or pick your unit, and schedule short study sessions from your unit’s plan on days when you are rested, not after a run of nights.

Schedules, break policies, and nap rules vary by employer and state, so ask your manager what is allowed on your unit. The fundamentals here stay the same.