Light, Sleep and Rhythm Planner: A Free Winter Light and Sleep Routine Worksheet

Depression · CBT · Practice-informed

A planner for the light, sleep and rhythm part of CBT for seasonal affective disorder. It builds a morning light plan, a gentle clock-change bridge and a weekly tracker. Bright light has meta-analytic support in seasonal affective disorder, although a 2024 network meta-analysis rates the quality of that evidence as low. Using it before an episode has not been directly trialled.

Underlying mechanism: Morning Light, Clock-Change Bridge and Sleep-Rhythm Tracker for Seasonal Low Mood

What it helps with

  • Making morning daylight and a steady wake time a concrete plan before the clocks go back.
  • Easing the clock change by moving wake time and bedtime by about 15 minutes a day, then holding a consistent wake time.
  • Making wind-down routines specific, so they are repeated and not just intended.
  • Showing client and clinician the real pattern of sleep, light, energy and mood in a weekly tracker.

How clinicians use it

  • Review the evidence honestly with the client, then build the light plan around what they will actually do.
  • Fill in the four-day bridge in the room, or use the Winter Watch micro-tool to work out the times.
  • Ask the client to track for a week or two and review the pattern at the next session.

Clinical Implementation Guide

  1. Ask about elevated mood and medical cautions before any light box talk.
  2. Fill in the bridge so the first step lands on the day your client can start it.
  3. Review the tracker at the next session and ask what the client notices.

What the worksheet looks like

Light, Sleep and Rhythm Planner — worked example
Part of the sheetWhat the client doesNotes
Morning light planTicks and times outdoor light and bright-window optionsDaylight is often far brighter than indoor light
Light box noteReads the cautions and checks with the GPStandard device rated at 10,000 lux, used in the morning
Clock-change bridgePlans four days of about 15 minute stepsPractice-based, not trialled
Winding downDims lights, limits screens and repeats a calming routineOptional slow breathing from W3
Weekly trackerRecords wake, outdoors, bedtime, energy and moodLook for patterns, not perfection

Clinical cautions

Ask about past elevated, irritable or unusually energised periods before any light advice, because light can be unsuitable in bipolar spectrum presentations. Light boxes need a GP or pharmacist check, especially with eye conditions, light-sensitising medication or migraine. Stop and seek advice with headache, eye strain, agitation or unusually elevated mood. The clock-change bridge is a practice-based approach and has not been trialled. Sleeping far more than usual or lying awake for hours most nights needs a conversation with the GP. This tool is not a substitute for individual face-to-face therapy or for emergency crisis support.

References

  1. Golden, R. N., Gaynes, B. N., Ekstrom, R. D., Hamer, R. M., Jacobsen, F. M., Suppes, T., Wisner, K. L., & Nemeroff, C. B. (2005). The efficacy of light therapy in the treatment of mood disorders: A review and meta-analysis of the evidence. American Journal of Psychiatry, 162(4), 656-662. https://doi.org/10.1176/appi.ajp.162.4.656
  2. Chen, Z.-W., Zhang, X.-F., & Tu, Z.-M. (2024). Treatment measures for seasonal affective disorder: A network meta-analysis. Journal of Affective Disorders, 350, 531-536. https://doi.org/10.1016/j.jad.2024.01.028
  3. Wan, Y., Ding, J., Fan, M., & Huang, H. (2025). Effectiveness of visible light for seasonal affective disorder: A systematic review and network meta-analysis. Medicine, 104(27), e43107. https://doi.org/10.1097/MD.0000000000043107
  4. Rohan, K. J., Meyerhoff, J., Ho, S.-Y., Evans, M., Postolache, T. T., & Vacek, P. M. (2016). Outcomes one and two winters following cognitive-behavioral therapy or light therapy for seasonal affective disorder. American Journal of Psychiatry, 173(3), 244-251. https://doi.org/10.1176/appi.ajp.2015.15060773
  5. National Health Service. (2025). Seasonal affective disorder (SAD) [Web page, last reviewed 17 December 2025]. https://www.nhs.uk/mental-health/conditions/seasonal-affective-disorder-sad/

Part of

Wintering Well

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