Sleep age guide · shift workers
Sleep age calculator for shift workers
Manufacturing, transit, security, and emergency services depend on people working when the body wants to sleep.
The pattern we see in shift workers
- Shift-work disorder affects 10–40% of long-term shift workers and presents as insomnia plus excessive sleepiness.
- Rotating schedules give the circadian system no stable target to lock onto.
- Daylight exposure during commutes home counters the effort to sleep through the day.
Three changes that move the needle.
Strategy 1
Stick to one direction of rotation
If your shifts rotate, request forward rotation (day → evening → night). The circadian system tolerates phase delays roughly twice as well as phase advances.
Strategy 2
Build a daytime sleep cave
Blackout curtains, white noise, phones on Do Not Disturb, household communication that you are unreachable. Day sleep that meets night-sleep quality requires the same darkness and silence.
Strategy 3
Eat with your active hours, not the clock
Light meals during the shift, larger meals when you wake. Eating during the body's biological night worsens insulin response.
Citations
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