Catherine can regulate her sleep schedule by sticking to a regular schedule for going to bed and getting up.
Naturally, the body sleep pattern is regulated by the Internal Clock which is set by regular pattern of sleep adopted by individual.
The human sleep pattern are observed by the brain and thus, is expected to shut down at that moment, If the person does fails to sleep during those period, the body may fail to recover appropriately.
So, sticking to a regular schedule for sleeping helps the body to understand the time you want to be rest and recover effectively
Therefore, Catherine can regulate her sleep schedule by sticking to a regular schedule for going to bed and getting up
The Missing options includes "A) Take a 45-minute nap in the middle of the day, B) Listen to dance music before going to bed, C) Stick to a regular schedule for going to bed and getting up, D) Sleep in a different room every few nights."
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