There are various synonyms for the expression "grabs some zs", which means to go to sleep or take a nap. Some commonly used synonyms include hit the hay, catch some shut-eye, get some rest, catch some Z's, and hit the snooze button. Other alternatives to this phrase include getting some shuteye, taking forty winks, catching some zzz's, sleeping tight, dozing off, and getting some beauty sleep. Regardless of which synonym one uses, the meaning remains the same, and it all depends on the context in which the word or phrase is used.