Took AAMC 11 with 3 hours of sleep in 48 hours...score was PS:15, VR13, BS15.
Took AAMC 10 with 10 full hours of sleep a few days before: PS14,VR12,BS13.
Get some coffee, that's all. Being sleeper deprived is something you should get used to if you're going into med school. Some people perform their best when they've had no sleep. It is relative to the person, if you get 4-6hrs of sleep a day and are used to it, sleep deprivation isn't an issue