You know how everybody has those moments when you forget why you walked into a room? It's frustrating, to be certain. But what do you do when it happens ALL THE TIME for days on end??? I either need to sleep for the next 3 days or check myself into the local Alzheimer's ward. Does there ever come a point where the brain damage from sleep deprivation is irreversible? I think I may have reached that point, say, yesterday.