Understanding Sleep Cycles: Why a Good Night's Sleep Isn't Always Unbroken

Research shows that healthy sleep involves multiple cycles and brief awakenings, challenging common misconceptions about uninterrupted rest.

Adults typically experience five to six sleep cycles per night, with brief awakenings at the end of each cycle being normal and healthy.
Good sleep is characterized by the ability to fall asleep quickly, minimal prolonged awakenings, and feeling rested upon waking.
Factors such as insomnia, sleep apnea, chronic health conditions, and lifestyle habits can significantly impact sleep quality and duration.
Women may require slightly more sleep than men due to biological and social factors, but the difference is generally small.
Sleep-tracking devices can help identify patterns but may not accurately measure sleep stages; consulting health professionals for concerns is recommended.