definitely get about 10 uninterrupted, sound, hours of sleep! if you think that it's impossible for you to get this much because you might not be used to doing this, take a very hot shower after a long enough that it takes workout to wear you out till you feel like you're gonna drop, and then hit the hay with a full committment to do just that. lock your bedroom door if you have to avoid intrusions from rude and inconsiderate others, and even turn on a semi-loud fan for the entire night to block out distracting or possibly wakening noises and sweet dreams!!!!!!

good luck on making the team!