Sleep health is a multidimensional pattern of sleep-wakefulness, adapted to individual, social, and environmental demands, that promotes physical and mental well-being. Good sleep health is characterized by subjective satisfaction, appropriate timing, adequate duration, high efficiency, and sustained alertness during waking hours.
— Daniel Buysse DB Daniel Buysse , Sleep
There is no agreed-upon definition of sleep health. Sleep experts have recognized that the quality of sleep cannot be determined using a single variable like sleep duration. Several questionnaires have been developed to attempt to capture the different dimensions of sleep health. There are multiple dimensions to good sleep that can include:
- Duration: Total time spent sleeping.
- Satisfaction: The subjective assessment by the individual of the quality of sleep.
- Alertness: The ability to function throughout the day without feelings of sleepiness.
- Timing and Regularity: The pattern in which sleep occurs during the day.
- Continuity and Efficiency: The ease with which an individual falls asleep and stays asleep, sleep efficiency is measured as time in bed compared to time asleep.
- Disorders: Establishing whether any sleep disorders are present.