Source-based health education. Sources read 13 October 2026. No individual medical advice or claim of clinical review.
Record the schedule you had
A diary for an irregular work pattern should describe the actual shifts and sleep periods rather than force them into a conventional night-time calendar. CDC’s sleep-diary fields provide a starting point; shift labels are our organisational addition.
Show boundaries and uncertainty
Write when a shift began and ended, then list the rest periods separately. Keep travel or time-zone changes visible. If dates are reconstructed from memory, label them estimated. A neat calendar should not conceal a gap or treat every day as if it had the same schedule.
Do not infer fitness or treatment
This record does not decide whether a person is safe to work or drive, diagnose a disorder or prescribe a schedule. It is a way to communicate the context of a question. Concerns about persistent sleep problems or safety require the appropriate professional or local service, not an interpretation invented from this worksheet.
Source and scope: Original public-agency guidance, read 13 October 2026. United States public-agency education. Practical worksheets and reading methods above are editorial interpretation, not a tested clinical tool.
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