Caffeine Curfew Audit
Move caffeine earlier and test a personal cutoff, starting at least 8 hours before bedtime for sensitive sleepers.
- Time
- 1 min/day
- Cost
- Free
- Equipment
- None required
- Min. Trial
- 10 days
Dosage & Timing
- Duration
- 1 min
- Frequency
- Daily
- Best Time
- midday
Evidence Strength
4/5 — StrongControlled trials show caffeine can impair sleep even when taken several hours before bed.
Overview
Move caffeine earlier and test a personal cutoff, starting at least 8 hours before bedtime for sensitive sleepers.
Wellness education and routine support only. Review the evidence, caveats, and interactions before trying this protocol, and ask a clinician when medical conditions, pregnancy, medications, or symptoms are involved.
How To Do It
- 1
Step 1
Write down your usual bedtime.
- 2
Step 2
Set caffeine cutoff 8 hours before that target bedtime.
- 3
Step 3
Keep the morning dose stable while testing the cutoff.
- 4
Step 4
Compare sleep latency and awakenings after 10 nights.
The Evidence
Each claim is linked to its source study. Confidence reflects the study design — systematic reviews and RCTs rank highest.
Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed
Caffeine consumed even 6 hours before bedtime produced measurable sleep disruption.
Source Context
Primary references behind the protocol summary.
Interactions & Warnings
Review 2 contraindications and 1 interaction note before adding this protocol to a routine.
Contraindications
- Caffeine withdrawal headaches
- Pregnancy or medication guidance requiring clinician review
Interactions
- Supports blue light reduction and sleep diary protocols
What To Track
These are review prompts for your own routine notes, not expected improvements or medical outcome targets.
Routine actions change your saved plan after sign-in. The protocol guidance above remains wellness education, not a personalized recommendation or expected outcome.
Saved-plan controls for this protocol
Related Protocols
Caffeine Curfew
Set a personal caffeine curfew, audit hidden sources, and track sleep timing or next-day energy for 1-2 weeks.
Morning Sunlight Exposure
Use outdoor morning light within 60 minutes of waking as a practical cue that may help anchor circadian timing and a consistent morning routine.
Blue Light Reduction
Dim lights and avoid screens 2-3 hours before bed to protect melatonin production. Use warm/amber lighting and blue-light blocking glasses if screen use is unavoidable.
Sleep Temperature Optimization
Try a cooler bedroom and a warm pre-bed shower as adjustable sleep-environment cues, then track comfort and sleep timing for a week.