I am not prescribed vyvanse, but I love uppers, so I got my hands on some 40mg vyvanse. I have taken It recreationaly before, but I only had 3 to take. This time I have more. So the question is: I took 160mg of vyvanse at around 12pm (noon) yesterday, and went to work feeling like a champ. Well of course I haven't gotten any sleep, and its 5am. I have to be at work at 10am (in about 5 hours) and I have more vyvanse. Should I stay up and take it now? Or sleep a couple hours and take it right before work? I'm afraid if I go to sleep I won't wake up for work. But I don't want to look crazy and cracked out at work either. Just wondering what a 2 day binge will bring.