Sleep onset latency

Sleep Onset Latency

In sleep science, sleep onset latency (SOL) refers to the length of time it takes to transition from full wakefulness to sleep, typically to the lightest of the non-REM sleep stages.

Sleep quality

• Sleep onset latency is an important parameter to consider when assessing sleep quality, as it can provide insights into various sleep disorders, such as insomnia or sleep-onset associations.

Factors affecting it

SOL can be affected by factors like stress, caffeine consumption, and sleep environment.

Tools

Sleep specialists often use sleep diaries or actigraphy to measure sleep onset latency, and it is also recorded during overnight polysomnography studies.

Sleep onset latency Resources
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