You miss one night!!!!! Out of how many years!!!! Although at the time I wanted to be out (surprise surprise) but my room mate actually insisted I have a lay down as I was suffering from concussion........even after an attempt to come out later on 2am I think.....I hate to say it but he was right and I was back on form the following day. So will try my best not to get concussed and then all is good in the world.