In sleep science, sleep onset latency (SOL) is the length of time that it takes to accomplish the transition from full wakefulness to sleep, normally to the lightest of the non-REM sleep stages.
| Minutes | Sleepiness |
|---|---|
| 0–5 | Severe |
| 5–10 | Troublesome |
| 10–15 | Manageable |
| 15–20 | Excellent |
Read more about Sleep Onset Latency: Sleep Latency Studies, Home Testing of Sleep Latency, Biomarkers of Sleepiness
Famous quotes containing the words sleep and/or onset:
“His speech is a burning fire;
With his lips he travaileth;
In his heart is a blind desire,
In his eyes foreknowledge of death:
He weaves, and is clothed with derision;
Sows, and he shall not reap;
His life is a watch or a vision
Between a sleep and a sleep.”
—A.C. (Algernon Charles)
“While the onset of puberty can vary by as much as six years, every adolescent wants to be right on the 50-yard line, right in the middle of the field. One is always too tall, too short, too thin, too fat, too hairy, too clear-skinned, too early, too late. Understandably, problems of self-image are rampant.”
—Joan Lipsitz (20th century)