So this weekend i will dedicate a whole night to camping sambas 5 spawn places

I need to know what i should have with me for that little journey. food, book, etc
What will i need to survive 12-24 hours of camping?

I need some ideas for things i can get time going by with (other than the thought of getting a epic pet)
So im thinking of starting around 22:00 friday nigth and going until the morning without leaving my computer beside restroom breaks for 1-2 mins. Or is there any other time period you guys would suggest?
Cheers Flammen