Sleep Cycle

Definition

A sleep cycle is a pattern of sleep that includes different stages, from light sleep to deep sleep and REM sleep, that repeats throughout the night.

Scientific / Technical Definition

The sleep cycle is a series of stages that the brain and body go through during sleep. Each cycle typically lasts about 90 minutes and includes stages such as NREM (non-rapid eye movement) stages 1, 2, and 3 (deep sleep), followed by REM (rapid eye movement) sleep, where most dreaming occurs and the brain is active.

Benefits

• Promotes restorative rest and recovery.
• Improves cognitive functions and memory consolidation.
• Enhances emotional regulation and mood stability.
• Supports metabolic health and the immune system.

Examples

• A full night of sleep with multiple 90-minute cycles.
• Adjusting sleep schedule to align with natural sleep cycles for better rest.

Additional Information

• importance: Maintaining regular sleep cycles is important for physical health, mental well-being, and overall quality of life. Disruptions in sleep cycles can lead to sleep disorders and negatively impact health.

Related Terms

• REM Sleep
• NREM Sleep
• Circadian Rhythm
• Sleep Hygiene

References

• Understanding the Sleep Cycle: What Happens During Sleep
• Stages of Sleep: The Sleep Cycle