For once, I am advocating for not sleeping, even if you have an exam tomorrow. Go outside in the wee hours of the morning, hence, missing precious REM sleep time. But seeing 30 to 300 comets whiz across the sky if you don’t live in suburbia and/or the city is well worth the skimping on sleep. Leonid’s Meteor Shower is tonight/tomorrow. Comets should appear between 2 and 4 am.