RAJESH SURESH DAKE Raigarh, India 210 Questions 106 Answers 0 Best Answers 32 Points View Profile 0 RAJESH SURESH DAKE Asked: February 28, 2020In: Health Do afternoon naps for one hour or so help or disturb sleep later on at night? 0 Do afternoon naps for one hour or so help or disturb sleep later on at night? Share Facebook 1 Answer Voted Oldest Recent RAJESH SURESH DAKE Raigarh, India 210 Questions 106 Answers 0 Best Answers 32 Points View Profile RAJESH SURESH DAKE Added an answer on February 28, 2020 at 5:25 am There are two processes in the brain that create sleep drive in general. The first is the body’s clock. It creates sleepiness between 3 a.m. and 5 a.m. and a little bit also in the afternoon; and it paradoxically creates wakefulness at around 8 p.m., during a time called ‘the forbidden zone of sleep.’ The second process relates more directly to your question. It is called “Process S,” where the “S” stands for ‘sleep.’ This is a process where the longer you stay awake, the more likely you are to go to the deeper stages of sleep when you go to sleep. We think it is driven by the build-up of adenosine in the brain over time. Caffeine antagonizes adenosine. Now, if you take a nap, the brain gets rid of adenosine at its site of action rather quickly. So, if you take a nap, you are indeed less likely to be able to go to sleep as successfully at bedtime. However, this isn’t the only thing driving you to sleep when you go to bed at night. We ask our insomnia patients not to nap because we want to keep as much of Process S going as we can. But we also have to think about the clock aspects of sleep. Both are involved in whether a person sleeps at a particular time. Answered by Douglas Moul, MD. Dr. Moul is certified in both general psychiatry and sleep medicine. Among his special interests are insomnia, sleep psychiatry, and sleep disorders. 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerCancel replyYou must login or register to add a new answer.