[varispeed]

I got an advice from a renowned psychiatrist to avoid naps at all cost. He was the fan of sleep fuel theory, where if you nap during the day, you'll lose sleep fuel and won't be able to have fully restorative sleep at night. It is important to pick a time in the morning and always wake up at that time no matter what. After a few weeks you'll get your sleep pattern right and won't need any naps etc.