How many sleep cycles do most adults experience per night?

Most adults typically experience around 4 to 6 sleep cycles per night. Each sleep cycle lasts approximately 90 minutes and includes various stages of sleep, such as light sleep, deep sleep, and REM (rapid eye movement) sleep. Given that the average adult requires about 7 to 9 hours of sleep each night, this time frame accommodates approximately 4 to 6 cycles.

Each cycle is important for different aspects of sleep health, including physical restoration, memory consolidation, and emotional regulation. By understanding the typical number of cycles, individuals can better appreciate the structure of their sleep and the importance of getting adequate rest.

The other options suggest either fewer cycles or excessively high counts, which would not align with the typical duration and characteristics of adult sleep. Thus, the selection of 4 to 6 cycles accurately reflects the sleep cycle pattern observed in most adults.