I think what is a healthy cycle depends on your individual body/chemistry/something? I used to have a sleep cycle more like that and this one works better for me, but I also know people who get up at 2 PM and are totally happy, and more power to them.

That sounds like a pretty cool thing to spend your summer on! I am the opposite in terms of sunlight --- not-sunlight makes me sad --- so I guess it's good that I live in the desert and you go out at night. :P Projects are awesome!!