Anyone who has been woken up at 5am with their kids thinking its morning will know where were coming from with the Gro-clock! For children who are too young to read an ordinary clock, the Gro-clock uses the sun and moon to explain the difference between night and day. The changing images encourage children to stay in bed longer as they learn to Stay in bed until you see the sun. The Gro-Clock includes a sleepy farm story book, beautifully illustrated by leading childrens artist Mike Terry. Sleepy Farm tells the tale of a very tired pig. The book helps reinforce the message of the importance of a good nights sleep.