Understanding your sleep cycles and what happens when you fall out of those sleep cycles is an important part of understanding your own sleep patterns and habits. If you feel as though you aren’t getting enough sleep at night, or the sleep that you are getting isn’t leaving you feeling rested and restored—you may want to talk to a doctor or sleep specialist. They can help track your sleep cycle and determine if there is something that is getting in the way of you getting that restorative sleep that you need.