15/07/2014 07:57 BST | Updated 15/07/2014 07:59 BST

This Dog Is So Happy He Wags His Tail In His Sleep (VIDEO)

Think you're happy? We bet you're not as happy as Frank the dachshund here.

Adopted by Rafael Borges when he was in a very bad way, Frank is so content with his new life that he now wags his tail even when he's asleep. No, really. Just check out the adorable video above.

We think may have to up this list to 21...

(Via Viral Viral Videos)