Too much caffeine will definitely do weird things to your sleep patterns. Cut down to just one or two cups a day at most (none at all would be best), and none

Too much caffeine will definitely do weird things to your sleep patterns. Cut down to just one or two cups a day at most (none at all would be best), and none at all after 4pm. Wait at least a week to adjust to the different sleep schedule that will come from taking in less caffeine. If the problem continues, see a doctor. HN is not qualified to give medical advice, except medical advice of the form "Go see a doctor."