Hello, We cannot say in your particular case. There can be fatal brain damage and people never wake up from it. In theory, it can be just sleepiness from the alcohol but this is unlikely because that wears off and almost never takes a full day for the person to wake up and generally doesn t need life support like the tube. I have had one patient each in this context. The alcohol patient didn t have serious problems and was barely admitted before being ok. The cocaine patient had multiple strokes and died. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Matt Wachsman