When i drink past 10 cups a day it wears off pretty fast. Never had a problem with sleeping. More common is general anxiety. If you are anxious at all, tons

When i drink past 10 cups a day it wears off pretty fast. Never had a problem with sleeping. More common is general anxiety. If you are anxious at all, tons of coffee tend to spike that up. Past 3 cups seems to harm my sanity more then it helps.