I'm a car free fellow insomniac, I quite a while ago went to the doctor to get help with the sleep, as far as biking goes, I ride 7 days a week generally at least 10 miles a day, yeah sometimes it sucks, but I think about it this way it could be a lot worse. I don't have any options for getting to work as I have to be at work before the buses are really running ( I could take one and be 15mins late) so basically I just buck up and ride, have I rode sick-yup, have I rode injured-yup, there really isn't any condition I haven't rode in, with, on. The longer you do it the easier it gets.