Katy is two months old, and her parents are exhausted. They take turns taking care of Katy while she is awake and they sleep while Katy sleeps. How often does Katy go through a complete sleep-wake cycle?
A) once every 2 hours
B) once every 4 hours
C) once every 6 hours
D) once every 8 hours

Question

Quizplus · Accepted Answer

Newborn babies usually have a sleep-wake cycle between 2-4 hours, with an average of 3 hours. Therefore, Katy is likely going through a complete sleep-wake cycle once every 4 hours.

Katy Is Two Months Old, and Her Parents Are Exhausted