This bipahsic sleep probably needs some getting used to. However, what I'd like to know is whether you can easily switch between 'normal' sleep (I normally sleep 6.5 hours at the moment, but I can't read a book in the evening without falling asleep), and biphasic sleep.
My daily schedule allows me to take a nap after work (around 18:30 to 20:00), and then sleep from midnight until 4:30. However, sometimes I will have a meeting, party or whatever after work. So it would be convenient to mix the biphasic sleep with 'normal' sleep. Does anybody have experience with or knowledge about this?