Zs

WordReference Random House Unabridged Dictionary of American English © 2026

z's  (zēz), n. (used with a pl. v.) [Slang.]

1. Slang Terms sleep (often used with grab, catch, etc.):
   to grab some z's before dinner.

Also, Z's. 

• from the conventional use of a series of z's to represent snoring 1960–65