Review caffeine and sleep together
Not ratedgeneral health evidence
When discussing sleep, include caffeine timing from coffee, tea and energy drinks.
Start with the time you have
1 minute
Name the time of your usual last caffeinated drink of the day.
5 minutes
List yesterday's caffeinated drinks and their approximate times.
15 minutes
Prepare a short sleep-and-caffeine note and one question for a clinician or pharmacist.
How sure the science is
Not rated, general health evidence
- No pooled trials to rate.
- This rests on single studies, expert consensus or clinical practice.
- Measured in the general population.
- ADHD trials of this do not exist or are too small.
General NHS insomnia advice and NHS adult ADHD self-care advice, with ADHD-specific sleep-risk evidence; no rating for a timing review.
The number, drawn
Why it matters
- Caffeine can get in the way of sleep, and general NHS guidance says to keep it away from bedtime.
- The NHS page on adult ADHD also suggests avoiding caffeine close to bedtime.
- Adults with ADHD already report more sleep problems than peers without ADHD.
- Knowing when you have caffeine can help a clinician assess your sleep, but caffeine is not an established ADHD treatment.
How to do it
- List your caffeinated drinks and roughly when you have them.
- Note when you try to sleep and how your sleep goes.
- Ask a clinician or pharmacist how your caffeine timing fits your sleep and any medicines.
Use this to prepare for a conversation, especially if you take medicines, are pregnant or have ongoing sleep problems.
Putting it into practice
In real life
- Bring a note that your last coffee is late afternoon and you struggle to fall asleep.
- Include tea and energy drinks when describing your caffeine use.
Watch out for
- Common mistakeCounting only coffee misses other sources. Include every caffeinated drink.
- Common mistakeUsing caffeine as ADHD medication skips the assessment. Talk about the problem you're trying to solve.
Trusted guides
How we rated it
- Evidence grade
- B Trials in ADHD with low certainty, or strong general health evidence with a sourced reason it matters more with ADHD.
- The number
- Avoid tea or coffee for at least 6 hours before bed (NHS, 2024)
- Benefit
- 52/100 An editorial priority for the general list, weighted by certainty. It does not predict what will happen for you.
- Effort
- Some effort
Sources
- Tier 1 guidelineInsomniaNHS, 2024
- Tier 2 studySleep in adults with ADHD: Systematic review and meta-analysis of subjective and objective studiesNeuroscience and Biobehavioral Reviews, 2018
- Tier 1 guidelineAbout SleepCDC, 2024
- Tier 1 guidelineADHD in adultsNHS, 2025
- General information about ADHD, not a diagnosis or an individual treatment plan.
- Tailoring changes the order of suggestions; it does not assess you.
- Medication decisions belong with you and a qualified clinician.