highly dependent on the location. depending where you are and the facility and setting, you could reliably be up most nights, or asleep most nights, or anything in between. I'm in an "average" size community hospital in an mid size "average" metro, but majority of the nights overwhelmingly I dont have to go in, I may get a few secure texts or calls to answer if that, but more often than not dont have to go in, occasional bolus or volvulus or unstable hematemesis every now n then. Now back in fellowship when was at the state flagship university hospital that had triple the beds and got shipped every mess within a 3 hour radius, you got lit up big time! But my first love was cards but chose GI just to get away from the interventional call, glad I did, choose wisely and its nice. Choose reallllly well and you can sleep most/all of the nights depending were you are at