If left unchecked, sleep disorders can cause dangerous daytime drowsiness and serious health conditions like cardiovascular issues, high blood pressure, diabetes, stroke and depression. A sleep study helps your healthcare team determine a treatment plan to get you on the road to your healthiest—and most rested—self. Top signs you may need a sleep study include snoring regularly and very loudly, sleepiness/fatigue during the day, gasping, choking or snoring sounds while you sleep, and even unusual behavior while you sleep such as sleep walking, sleep talking, nocturnal eating or night terrors.