After a couple of days, I am attending an event (relaxing one) which will have me sitting and watching films for straight 8 hours (with short breaks in between). The problem is that before that I am working (physical work) for 7 hours, then the event comes (8 hours), then I will sleep for 5 hours, then again I get up and have to work 7 hours. All in all, I will have 5 hours of sleep in the span of around 40 hours. I am a little worried whether I will be able to endure and not pass out. I can't neither skip the event or have the work days off. Do you think everything will be ok? I am 21 years old. Thank you