Type in your shift times, and this tool builds your personal light plan for one full work day. It shows you when to chase bright light, when to start dimming, when the sunglasses go on, and when your bedroom needs to be fully dark.
Your body clock runs on light, not on your schedule. Get the timing right and the 3 a.m. crash softens and day sleep comes faster. Everything below runs in your browser, and nothing you type is saved.
Free Tool for Night Shift Nurses
Night Shift Light Plan Generator
Everything runs in your browser. Nothing is saved or sent anywhere.
How to Fill In Each Box
Shift starts and shift ends. Use the times you actually clock in and clock out, not the times on the schedule. If you usually leave 30 minutes late after report, put that later time in.
Drive home. Count from the moment you walk out the hospital door to the moment you are inside your house. Include the walk to the parking garage.
Wind-down at home. This is the stretch between walking in and lying down: shower, snack, scrubs in the hamper. Most nurses need 30 to 60 minutes. Be honest here, since a short guess pushes your whole plan off.
Sleep you aim for. Most adults need 7 to 9 hours. Enter the amount you are working toward, even if you do not hit it yet.
Light box. Pick “Yes” only if you own one. The tool changes your wake-up advice based on this answer.
Three mistakes that throw off your plan
- Entering your scheduled end time when you always leave late
- Guessing a 10-minute wind-down when it really takes 45
- Setting a 9-hour sleep goal that leaves under 2 hours awake before work
What Your Light Plan Means
Your results split the day into four zones.
Bright. From the moment you wake up to about the middle of your shift. Bright light here tells your body the “day” has started, which keeps you alert on shift and pushes your clock later.
Normal. The middle stretch of your shift. Regular unit lighting is fine here. You are not chasing extra light, and you are not avoiding it yet.
Dim. From 2 hours before clock-out until you lie down. Lower screens, skip bright break rooms, wear sunglasses outside, and use warm lamps at home. This lets melatonin start to rise.
Dark. Your whole sleep block. Your bedroom should be dark enough that you cannot see your hand at arm’s length at midday.
The “Key Times” cards turn those zones into six moments you can set phone reminders for.
How the Generator Works
The tool starts with your shift times and works around the clock from there.
It adds your drive and wind-down to your clock-out time to find your lights-out time. Then it adds your sleep goal to find your wake time. Everything from wake-up to the middle of your shift becomes your bright window.
Your dim window starts 2 hours before clock-out. If your shift is shorter than 4 hours, it starts at the midpoint instead.
The “last call” for bright light is whichever comes first: the middle of your shift, or 4 hours before your lights-out time. Bright light any later than that tends to make day sleep harder.
How to Use Your Plan on a Real Shift
Print your plan or screenshot it. Then set three phone alarms: one for your bright light time, one for your start-dimming time, and one for your sunglasses time.
Follow the plan for 7 days before you change anything. Most nurses feel a difference by shift 3 or 4.
For the full step-by-step method behind this tool, read the Light, Dark and Your Body Clock Guide for Night Shift Nurses. It walks through every window, the gear that helps, and a 7-day tracker for fine-tuning.
Pair your light plan with a dark room using these blackout bedroom ideas for nurses, and see where the rest of your week goes with the 3×12 Hour Map Calculator for Nurses.
What This Tool Cannot Tell You
This tool gives you a starting plan, not a medical one. It does not know your sunrise time, your unit’s lighting, or how your own body responds to light.
In winter, it may still be dark when you clock out. Never wear dark sunglasses to drive in the dark. Put them on once the sky is light.
If you have bipolar disorder, an eye condition, or take a medicine that makes you sensitive to light, talk to your own provider before using a light box. If you still struggle to sleep after a few weeks of steady habits, that is worth a conversation with your provider too.
Frequently Asked Questions
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Light Plan Generator FAQ
