Free tool

Night shift sleep planner

Enter your shift end, the gap before bed and the hours you plan to spend in bed. Compare the proposed times, with day labels for overnight schedules.

Constants and sources
ConstantValueSource
NIOSH sleep contextAbout 7–8 hours of good-quality sleep for most adults; individual needs vary.NIOSH Training for Nurses, Module 6 page 1, reviewed March 31, 2020. Time in bed is not measured time asleep. (September 14, 2026)
Preparing for sleepNIOSH describes a relaxing routine and lower light before bedtime.Module 6 page 4, reviewed March 31, 2020. The entered gap is a user estimate including travel, not a prescribed routine length. (September 14, 2026)
Light and drivingThe gap is not a sunglasses window.NIOSH Module 6 page 7 cautions that dark sunglasses may increase drowsiness while driving; safest after-night-shift use is with someone else driving. Reviewed March 31, 2020. (September 14, 2026)

What the planner shows

The planner adds a preparation gap and a planned time in bed to your shift end. It returns the proposed bedtime, the proposed alarm, the gap before bed and the length of the block you reserved. These are clock calculations for one schedule, without a prediction of when you will fall asleep.

Enter the end of the shift in a 24-hour clock. Then enter the total time needed before bed, including the commute and anything you plan to do at home. Choose the time in bed yourself. The initial values and quick examples are editable scheduling assumptions, not measurements of your sleep needs.

The gifts for nurses guide discusses the practical demands of a shift. Our useful gifts for nurses article covers everyday items. This planner helps write down a timetable alongside those choices; it cannot show whether an item will improve sleep or make a commute safe.

How the times are calculated

Bedtime equals shift end plus the gap before bed. Alarm time equals that bedtime plus the planned hours in bed. For example, finishing at 07:30 and allowing 1.5 hours before bed gives 09:00. Reserving seven hours then gives a proposed alarm at 16:00.

Every result includes a day label. Day zero is the calendar day on which the entered shift ends. A result marked next day belongs to the following day. The calculation treats each day as 24 hours; it does not use a location, date, time zone or daylight-saving transition.

Use decimal hours for the two duration fields: 0.5 is thirty minutes, 1.25 is one hour fifteen minutes, and 1.5 is one hour thirty minutes. Clock results round to the nearest minute. A blank duration prompts you to enter a value; it does not silently reuse the example.

The NIOSH nurse training introduction to sleep describes about seven to eight hours of good-quality sleep for most adults and explains that individual needs vary. Time reserved in bed is different from time asleep: delays in falling asleep and awakenings reduce the latter. The calculator does not subtract a guessed sleep latency.

NIOSH's preparation guidance suggests reducing light before bedtime and establishing a relaxing routine. That guidance does not set your commute length. The single gap input simply records the total you choose; it does not divide travel, meals, childcare and relaxation into separate prescriptions. We checked these training pages on September 14, 2026; their stated review date is March 31, 2020.

Three schedule examples

A shift ending at 07:30, a 1.5-hour gap and seven planned hours in bed produce a 09:00 bedtime and 16:00 alarm, both on day zero. The preparation gap runs from 07:30 to 09:00 on that day.

A shift ending at 07:00, a one-hour gap and eight planned hours produce an 08:00 bedtime and 16:00 alarm. The equal alarm time in these two examples follows from changing both the shift end and the gap. Adding an hour in bed alone would move the alarm later.

An evening shift ending at 23:00, followed by a one-hour gap and eight hours in bed, gives midnight and 08:00 on the next day. A zero-hour gap makes bedtime equal shift end. Enter that only when it represents the schedule you want to compare.

What the schedule cannot decide

The gap before bed is not a sunglasses window. NIOSH's light guidance cautions that dark sunglasses may increase sleepiness during the drive home; it describes using them after nights as safest when someone else drives. The planner makes no assessment of driving alertness.

It also does not schedule naps, adapt a rotating roster, account for interrupted sleep or predict sleep stages. The available input range is a calculation range, not a recommended duration. Persistent sleep difficulties need individual assessment beyond a timetable.

Examples

Worked examples

  • 07:30 shift end, 1.5-hour gap, seven hours in bed — Bedtime is 09:00 and the alarm is 16:00 on day zero.
  • 07:00 shift end, one-hour gap, eight hours in bed — Bedtime is 08:00 and the alarm is 16:00 on day zero.
  • 23:00 shift end, one-hour gap, eight hours in bed — Bedtime is 00:00 and the alarm is 08:00 on the next day.
FAQ

Common questions

Is time in bed the same as sleep?

No. Falling asleep takes time, and awakenings may reduce sleep further. This planner reserves a block without predicting how much of it you will sleep.

What does next day mean?

Day zero is the day the entered shift ends. Next day is the following calendar day. The calculation treats days as 24 hours and does not account for daylight-saving changes.

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Copy the code and paste it anywhere. The calculator runs on its own, no sign-up or key; the link under the frame points back to this page (keep it — that is the attribution).

Constants and sources checked on September 14, 2026.