Originally Posted by Saidin
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?
I am on more or less the exact same schedule. My nap is not solid 90 minutes yet so I am planning to reduce my core sleep until it spans 90 minutes.
Mixing monophasic and biphasic does not work for me. I get naturally tired in the evening up to a point where it feels like I have to sleep. When I face situations like you describe I try to get at least a 30 minutes nap or to sleep earlier. This works pretty well for me.