I think the most brilliant, creative shit ever thought up happened between the hours of 1 and 5 am. See, we get day jobs and all that goes to hell along with our kidneys and patience from all the Starbucks we guzzle to drag or over stimulated under inspired bodies through another day wearing pantyhose in an office! 
I can't really be creative in the night, I can work yes, but not being creative. mostly in the morning or by driving and taking my shower!