Originally Posted by
FlyingScientist
Just to further demonstrate that people are different: Going to bed in California by 19:00 for an early start to the next day works out perfectly for me. Given that I usually go to Santa Barbara, it's the earlier flight (overnight stay at LHR).
I could do the same, but I would wake up at 2.00am and be wide awake. Going to bed at 19.00 is at least 4 hours earlier than I have been to bed in the past forty years.