Ouch...
It depends with me, I can from anywhere between 8 hours of sleep a night to 4, It usually balances at 6 hours or under, But I do have trouble sleeping.
Longest I Stayed awake? 2 days and a bit playing SEIV, non SEIV? At least 4 days in the school holidays, It might have been 5 but when you're awake that long you do tend to lose track. I slept for at least 2 days straight after that
