I occasionally disappeared into my cave (the rooms were en suite so you literally didn't have to leave) for a day or two at Uni when all of the constant drinking / socialising got too much... but not without food ffs. I had a toasted sandwich maker in my room and a mini fridge, kettle, pot noodles etc. so I just got supplies in and I was good to go
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[edit] I was late starting with "Lost" which was at the end of season 2 when I started watching it at Uni. I once told my Uni friends that I was going home for a long weekend, locked my door, shut the blackout-lined curtains, and binged those first two seasons over 3 days in the pitch dark.
NGL it was amazing.
[edit 2] I mean I say "days" but at the time I was sleeping from like 6am - 2pm so it was mostly nights
