Son With Mental Issues Was Taking Clonazepam 50mg. At Night

Son with mental issues was taking clonazepam 50mg. at night to sleep. Lately he is trouble sleeping so DR. in addition to clonazepam gave him trazadon 50 mg. which he took last night n didn't sleep well at all. He drinks two 12 oz. glasses of coffe in the morning only...........every two hrs. He drinks a can of Arizona tea 23 oz. real brewed without the ginzen............what do u suggest?