WIY:- 4 years from now in 2017, the clocks go forward on Purim, so have a shorter Taanis Esther, and a longer Purim evening and then Purim day to deliver Shelach Monos.
So maybe in 2017, you’ll be grateful to loose 1 hour sleep and more awake hours to celebrate Purim.
& if you do need to sleep then, first cosume some wine, and when you sleep to recover from the time change, you can fulfill not knowing the difference between Orrur Homon & Boruch Mordochai.