2 doctors weighed in:
I don't drink caffeine after 3. Why can't I sleep at 10?
2 doctors weighed in

Dr. Michelle Zetoony
Internal Medicine - Sleep Medicine
1 doctor agrees
In brief: Half life
As we age, we metabolize caffeine differently.
It may take 13 hours to get out of your system. I tell patients to take last caffeine 12 hours before planned bedtime. Also caffeine can aggravate other medical issues which may be causing sleep problems (rls, nocturia, cardiac issues, etc).

In brief: Half life
As we age, we metabolize caffeine differently.
It may take 13 hours to get out of your system. I tell patients to take last caffeine 12 hours before planned bedtime. Also caffeine can aggravate other medical issues which may be causing sleep problems (rls, nocturia, cardiac issues, etc).
Dr. Michelle Zetoony
Dr. Michelle Zetoony
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