Dreaming dog seems relieved to be woken up

What do dogs have nightmares about?

Thunderstorms? Fireworks? Being chased by giant cats?

Well whatever it is this dog looks relieved to be woken up from a horrible dream.

This animal’s afternoon snooze obviously turns nasty as he is seen crying out on the sofa.

Luckily his owner is on hand to rouse him and the look on his face at the end is adorable.