I had night clinicals last semester. Try to rest and sleep in the morning/day before the night clinical. I would always drink coffee before the shift started and then I would have more during lunch break (They will probably have some for you there). I would recommend spending time with your nurse and helping them anyway you can. Night shifts are slower so you may be able to get to know your nurse better and who knows they might recommend you for a job opening if you make a good enough impression. Study your patients' charts, meds, and disease processes. Definitely bring study material when you have a test.