Certified Polysomnographic Technician (CPSGT) 2025 – 400 Free Practice Questions to Pass the Exam

The main purpose of a sleep diary in sleep studies is to gather subjective data regarding sleep patterns and behaviors over time. A sleep diary allows individuals to record various aspects of their sleep, such as sleep onset, duration, quality, and daily routines that may affect sleep, including activities prior to sleep, any awakenings during the night, and feelings of restfulness upon waking. This qualitative data is invaluable for identifying trends, behaviors, or environmental factors influencing sleep quality, which can inform further evaluation and treatment.

While documenting objective sleep quality, tracking food and drink consumption, and recording medications taken are related practices that can influence sleep, they do not encapsulate the principal function of a sleep diary. The subjective report of personal experiences and perceptions of sleep can highlight issues that may not be captured through objective measures alone, making it a crucial tool in understanding an individual’s sleep health comprehensively.