Originally Posted by ShyGuy

I'm more of a believer of "you know what you signed up for." Anyone applying to UPS should know what their schedules are like and that the majority of flying is night. Humans aren't designed for long term back side of the clock operation. Even if FAR 117 was in play, you can't fix peoples' decisions about how and when they rest.

I haven't done UPS flying, the closest I have is living on the west coast and doing back to back transcon redeye trips. For these trips, sleep in/wake up late on the day of the redeye. But once the redeye is done and it's morning on the east coast, the first thing to do is shut the blinds in the hotel room, turn off all lights, and hit the bed. I can't imagine a pilot who has flown all night/awake would now consider jumpseating out to see someone else, unless this is the end of the trip and you're going home with no further duty for the pairing.

As for relevance of what you do on an overnight, it does matter. The NTSB will look at it, even if you got adequate rest. The day of the accident rest/sleep prior to reporting for duty outta RFD is pretty disturbing.