also - a tiny bit of advice would be to try and go to bed earlier! Seriously, as a graduate who has been in work for a good few years now.. getting into bad sleep patterns at uni is not a good idea at all. Its so easy to do with the complete freedom/social life, but over the course of your life its much more advisable to keep the same morning discipline you had at school, and will likely have in work after (unless your doing a particularly unusual profession). I have seen far to many graduates struggle over the first few months/longer at work because they have to re-learn a more disciplined sleep cycle, after 3-4 years of going to bed and waking up at unusual times. Theres a great saying out here in china: "Master the morning, Master the life"