The Bear That Couldn't Sleep is a 1939 MGM cartoon directed by Rudolf Ising.
Barney Bear is preparing for his winter sleep. He puts a sign on his door that said: DO NOT DISTURB UNTIL SPRING,sets his clock to alarm at March,when it is spring. He ties up the waterhole and puts a water bag under his bed and goes to sleep. But the water bag leaks. Before Barney can cry about it, the waterhole splashes all over him. But the windows are about to burst open but Barney did not mind,but it did,setting snow all over the bed. Barney leaves the kettle on but a crackle gets in his pants. He gets rid of it and goes back to sleep, only finding spring has come.
- First Barney Bear cartoon