I suffer from anxiety, one of my old psychiatrists, suggested a sleep study. should i have one done? what are the reasons for one?

Sleep studies assess the quality of sleep as one moves through the stages from very light to very deep. Very deep sleep provides greater restorative time. Those who fail to reach deep sleep for enough time may lack energy, fall asleep during simple activities among other symptoms. Sleep apnea is a common treatable cause and is one of the more under diagnosed conditions of adults.