Meaning and Usage
"睡眠" (すいみん) means "sleep" in a formal or medical context. It refers to the state of resting by sleeping, often used in health-related discussions or scientific contexts.
Common Contexts
You will often see "睡眠" in phrases about health, such as "睡眠不足" (lack of sleep) or "十分な睡眠" (enough sleep). It is more formal than just "寝る" (to sleep) and is common in written language, medical advice, or when discussing sleep quality.
Collocations and Patterns
- 睡眠不足 (すいみんぶそく): lack of sleep, used when someone hasn't slept enough.
- 睡眠時間 (すいみんじかん): sleep duration, the amount of time spent sleeping.
- 十分な睡眠 (じゅうぶんなすいみん): sufficient sleep, emphasizing enough rest.
Register and Nuance
"睡眠" is neutral to formal and rarely used in casual conversation. Instead, people say "寝る" or "眠る" for everyday talk about sleeping. Using "睡眠" shows a more objective or clinical tone.
Common Mistake
Learners sometimes confuse "睡眠" with the verb "寝る". Remember, "睡眠" is a noun referring to the state or quality of sleep, not the action of going to sleep.