Sleep Vocabulary

5. A sequence of thoughts, images, or feelings during REM sleep.
7. A hormone produced by the brain that helps control the sleep-wake cycle.
8. Difficulty falling asleep or staying asleep, even when tired.
10. A behavior where a person walks or performs activities while not fully awake.
11. A natural state of rest for the body and mind.
13. A disturbing dream that can cause fear or anxiety.
14. Short periods of sleep taken during the day to help refresh the body.
16. A 90-minute period that includes both Non-REM and REM sleep.
18. A condition when a person does not get enough sleep over time.
19. A condition where a person feels uncomfortable sensations in their legs, causing difficulty sleeping.

1. The body’s internal clock that regulates sleep and wake cycles over 24 hours.
2. The setting where a person sleeps, including bed, temperature, noise, and light.
3. A temporary inability to move or speak while falling asleep or waking up.
4. A sleep disorder where a person temporarily stops breathing during sleep.
6. A set of activities done before bed to help prepare the body for sleep.
9. Good habits and practices that promote healthy and restful sleep.
12. A type of light from screens that interferes with melatonin production.
13. The first four stages of sleep, where the body slows down and repairs itself.
15. The final stage of sleep, where dreaming occurs.
17. A temporary sleep disorder caused by traveling across multiple time zones.