The telltale signs of a good or bad night’s sleep
35 percent of adult’s sleep for under 7 hours each night, according to the American Sleep Association.
According to the National Sleep Foundation, over one third of people in the United States say that their sleep quality is “poor” or only “fair.”
But what determines sleep quality? In a 2017 report published in the journal Sleep Health, the National Sleep Foundation assembled a team of sleep experts to define what indicates good-quality sleep. Here are some of the metrics that the panel agreed on.
Factors that contribute to good sleep quality in adults:
- falling asleep in 30 minutes or under
- waking up for under 5 minutes once per night
- being asleep for 85 percent or more of the total time that you spend in bed
- being awake in the night for under 20 minutes
Factors that contribute to bad sleep quality:
- taking more than 1 hour to fall asleep
- waking up on four or more occasions
- sleeping for less than 74 percent of the time spent in bed
- being awake for 41 minutes or more during the night
A study showed that two factors made the biggest contribution to the participants’ perceived sleep quality: the number of times a person woke during the night, and how much time they had spent asleep during the previous night.