Well, I’m not overly fond of the illustrations — they’re a bit on the drab side, but the story is even more drab: neither believable nor interesting.  When the princess refuses to sleep (at all, ever) no one in the kingdom can sleep, so they bring in all sorts of folks who try all sorts of things, from singing to stories to counting sheep, and nothing works.  Then the prince rolls into town, shouts “Silence,” the princess falls asleep and the prince falls in love.  The end.