I use to do that in highschool. Not so much because I wanted the pre-workout boost but because it was the only way i could make school half way entertaining. I am not familiar with the exact physical effects but it works well if you are feeling lazy and not really motivated. So I would suggest it mostly due to its psychological pump up, and the possibility of slight strength gains while peaking.

what is adderral?
is it like cold and flu drug?

Its an amphetamine prescribed for ADD

I wouldn't be able to get a good night sleep if it were me thus messing with rest. Plus it's catabolic if I'm not mistaken. eca no good?

They generally last about 5 hours or so, so if taken early enough you'd be able to sleep.