For some reason, when I used to travel a lot, I always felt depleted of energy and in need of sleep. It usually took me a week to recover.
I am not one to party and stay out late anyway - since I dated a guy who played in a band in the 70's, I got my fill of clubs.
I probably would still go to an occasional club if I could stand the smoke and could get to feeling a bit better. I love to dance and I love techno music.
I was in South Beach in early March of this year and despite no time change, I was worn out when I got home.
I did not go out into the direct sun and did mostly family-oriented activities.
I did Parasail, which was a blast.
I think I was out late only one night and that was to go to the open air mall (which was fun, fun, fun).
But when I got home, I was really tired.
Just listen to your body and rest. I don't know if it the excitement of travel or just a change in routine, but I think a lot of people experience energy depletion after a big trip.