Dear Cksocial,Thank you for reaching out to us here at Re-Timer. Unfortunately no, you must have your eyes open for Re-Timer to work. The principal is having light enter your eyes so that the receptors register this light an retime your body clock. For this to work you must have your eyes open for the light to enter.If you have any other questions we are happy to help. Many Thanks, VeraRe-Timer Customer Engagement