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Sleep efficiency (SE) is the ratio between the time a person spends asleep, and the total time dedicated to sleep (i.e. both sleeping and attempting to fall asleep or fall back asleep). It is given as a percentage. [1] SE of 80% or more is considered normal/healthy with most young healthy adults displaying SE above 90%.
Thirteen- to 18-year-olds need about eight to 10 hours of sleep per night, but the sleep schedule shifts, with bedtime coming later in the evening and wake-up coming later in the morning. Parents ...
The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality over a 1-month time interval. The measure consists of 19 individual items, creating 7 components that produce one global score, and takes 5–10 minutes to complete. [1] Developed by researchers at the University of Pittsburgh, [2] the PSQI is ...
A sleep onset latency of 0 to 5 minutes means severe sleep deprivation, 5 to 10 minutes is "troublesome", 10 to 15 minutes indicates a mild but "manageable" degree of sleep debt, and 15 to 20 minutes is indicative of "little or no" sleep debt. [1]: 341–342. In sleep science, sleep onset latency (SOL) is the length of time that it takes to ...
Most Americans rate their sleep as average (three out of five). When broken down by age group, Gen Z and Millennials report higher rates of good sleep compared to the overall average, while Gen X ...
Treatment. Cognitive behavioral therapy, caffeine (to induce alertness), sleeping pills. Sleep deprivation, also known as sleep insufficiency[2] or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health. It can be either chronic or acute and may vary widely in ...