how many hours before bed should you stop drinking caffeine
How much caffeine should I have? If you are having trouble sleeping, you should try to limit the amount of caffeine that you have. It is best to have no more than 200mg per day. You should not have any for at least 4 hours prior to bedtime. Many people will find that their sleep improves with just this change. But you should also keep in mind that caffeine is addictive. This means that if you stop suddenly, you may suffer from headaches, tiredness and anxiety.