What is Sleep Health?

R — Regularity of Sleep

In order to help keep your internal clock on schedule, and make sure that you have been awake long enough to feel sleepy at bedtime, it is important to have sleep regularity, or a consistent sleep-wake schedule. Emerging evidence suggests that inconsistent sleep-wake schedules are associated with poorer health outcomes, including cardiometabolic risk factors (e.g., insulin sensitivity, elevated blood pressure) and obesity.

S — Satisfaction with Sleep

Satisfaction with sleep is a subjective variable, which means you are the only one who can determine if your sleep was “good” or “poor.” This variable captures your experience of sleep, which can be influenced by environmental or social contexts. So what makes you satisfied with your sleep? Is it how much sleep you got, whether or not you woke up during the night, and/or how you felt in the morning? Each of these dimensions are important to overall sleep health, but only you can determine what is a “good” night of sleep for you.

A — Alertness/Daytime Sleepiness

Good sleep health should include feeling alert and attentive throughout the day. Daytime sleepiness can result from not getting enough sleep, poor quality sleep, or an underlying sleep disorder. Sleepiness can usually be reversed by improving sleep duration or quality. This is important, because many people mistake fatigue, which is extreme tiredness due to physical or emotional exertion or illness, as sleepiness. Yet fatigue is often not alleviated with sleep, regardless of duration or quality.

T — Timing

Timing is all about when you sleep. For most people, sleep happens at night, with bedtimes between 9:00 pm and midnight. However, our circadian rhythm or internal clock can strongly impact when we are able to fall asleep. People who consider themselves “morning larks” and wake early in the morning are more likely to have an early bedtime, while “night owls” may have a much later bedtime and wake time. That said, sleep timing is heavily influenced by external factors, including what time you have to wake up for work or caring for children.

E — Efficiency (or Continuity)

Sleep efficiency or continuity is defined by how easy it is to fall asleep and return to sleep. Fun facts

D — Duration

Sleep Duration is how many hours of sleep you get every 24 hours. This includes both nighttime and daytime sleep. For most adults, the recommended amount of sleep is 7 to 9 hours. While there are a few people who are truly short sleepers, most people who “get by” on less than 7 hours are doing just that, getting by. They have adapted to the demands that limit their sleep duration (or have fallen victim to the incorrect belief that sleep is for slackers), but they are likely not thriving or achieving optimal health. Similarly, while someone who consistently gets more than 9 hours of sleep per night may be a long sleeper, this could also be a sign of an underlying medical or psychiatric condition that requires additional evaluation and treatment.

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Zepp Aura

Zepp Aura

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Zepp Aura, Zepp Health’s rest and mindfulness solutions service, helps users sleep and rest better with AI-powered personalized sleep melodies.