The historical connection
Yojokun / 飲茶
A historical discussion of tea drinking; caffeine and contemporary products require modern sources.
Read the source and edition detailsReview when you drink tea and coffee
Notice the type and timing of drinks as part of preparing for rest.
Your first step today
Note the latest caffeinated drink you had today.
A starting point for
People who drink caffeinated beverages late and have trouble settling to sleep.
Try it, step by step
Check tea and energy drinks as well as coffee.
Try replacing a late drink with water or a caffeine-free option.
For a few days, record timing and how easily you settle to sleep.
Make it part of ordinary life
Separate the time for enjoying a drink from the time for preparing to sleep.
What to notice
Compare days, while noting other changes that could affect sleep.
Check before you begin
- Herbal teas can involve allergies and interactions; caffeine-free does not settle every safety question.
Explore the context behind this practice
Modern guidance and the editorial proposal
Based on sleep guidance about caffeine; individual responses and duration vary.
厚生労働省 · Sleep Guide for Health Promotion 2023Checked 2026-11-09Relevant when replacing a drink with an herbal product.
厚生労働省 eJIM · How herbs can interact with medicinesChecked 2026-11-09
The routine is an editorial proposal, not a literal translation, diagnosis, or prescription. A cited source does not necessarily test this exact routine.