A very energetic Pinkie Pie needs her sleep after a long day of partying.
Ironic that my first picture of Pinkie is so out of character. Like, when do you ever see Pinkie sleeping? Geez. I think she looks cute, though.
Sketched, lined and colored all in Paint.Net, over... 2 hours? Give or take. I used a sitting pose from one of the episodes for reference. (I've never drawn ponies laying down >_>)