got to go home and get my beauty sleep

(I've) got to go home and get my beauty sleep.

Fig. a phrase announcing one's need to depart because it is late. (See also (I) have to shove off for other possible variations.) Sue: Leaving so early? John: I've got to go home and get my beauty sleep. Jane: I've got to go home and get my beauty sleep. Fred: Well, you look to me like you've had enough. Jane: Why, thank you.
See also: and, beauty, get, home, sleep