"Grab some Z's" is a slang term that means to get some sleep. Sometimes, using the same phrase repeatedly can make it lose its charm. Thus, here are some synonyms for the term "grab some Z's": catch some shut-eye, hit the hay, hit the sack, get some rest, take a nap, snooze, slumber, doze off, get some shuteye, take a siesta, get some beauty sleep, and get some z's. Using these synonyms, one can bring variety to their vocabulary and communication style, making their conversations more interesting and engaging. So, whenever you want to tell someone to sleep, use one of these synonyms instead of the same old phrase.