Concerta = ZzzzzZzzz how can this be?

[pankreeas]

At approx 5 pm swim removed the brown layer from (2) 18 mg time release concerta tablets and proceeded to crush up the insides. This powder was mixed with raspberry ginger ale then was swallowed. 35 - 45 min later swim finds himself on the couch watching tv unable to stay awake.. swim dozes off and awakes rougly 2 hours later feeling very refreshed and almost no traces of any high.. not like there was much to begin with but.. so does this have a reverse effect on anyone else? Swims purpose of this experiment was simply to help him stay awake for a long long night of studying... some good that did.