A dog's movie chasing after something in a dream and running desperately while sleeping

A movie of a dog that keeps running desperately while sleeping, as if chased by something scary in a dream. Even after getting up, I'm sleeping, I rush on the wall and crash from my head.

Movie playback is from the following.
YouTube - Sleeping Dog Runs Into Wall


I thought that he was sleeping quietly, suddenly flapped his feet and started running while sleeping.






Ah! woke up.


Are you asleep as you rush into the wall?


Gochin!


Van!


I want to see I woke up hitting my head.




It must have been chased by a scary thing in a dream.