Children's picture book

Enjoy this cute story about the little elephant, who couldn't fall asleep. "Once upon a time, there was a small elephant, he was gray and thick-skinned, with very long trunk and big-big ears. He was very cute elephant, his name was Muffin.... All as usual, he placed his head upon a pillow and shut eyes. Only this night, Muffin could not sleep. He tossed and turned in bed, lied on his left side, then on his right side, on his stomach and on the back, but sleep did not come....."