Rocko's Modern Life (1993)

S4E2 Sailing the Seven Zzz's

While in a deep sleep, Mr. Bighead dreams he’s a swashbuckling pirate on a quest for treasure. In his slumbering state, he persistently attempts to seize a treasure map from Rocko, who is bewildered by his antics. As Mr. Bighead navigates his dreamlike adventure, chaos and laughter ensue, leaving Rocko to figure out how to deal with his sleepwalking neighbor's wild imagination.