IamA board certified sleep physician and neurologist, here to answer all your questions about sleep. AMA!
Dr. Nate Watson here. I am a sleep specialist, past president of the American Academy of Sleep Medicine (AASM), professor of neurology at the University of Washington and co-director of the University of Washington Medicine Sleep Center. Recently, the AASM launched an online calculator to help you find your customized ideal bedtime and improve sleep habits. I am here to help you sleep better to improve your life! (This is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.)
Link to online sleep calculator: http://www.sleepeducation.org/healthysleep/Make-Time-2-Sleep-Bedtime-Calculator
EDIT: Hi everyone - I have to sign off now, but thanks so much for all your excellent questions. I will do my best to answer some of them later. In the meantime, make sure you check out www.sleepeducation.org for numerous helpful resources.