visit Yuanyang from Kunming

Hi there, i would like to ask is one full day enough to visit the terrace?
my plan is
day 1. arrive to Kunming at morning (about 12h) and take a bus to the rice terrace (make night in same village in the area)
day 2 all day visit and take sleeper bus to Kunming
you think is factible?
thank you very much and best regards