"Grab some z's" is a common phrase that means to go to sleep or take a nap. There are several synonyms for this phrase such as catching some shut-eye, hitting the sack, getting some rest, catching some z's, taking a snooze, and dozing off. These synonyms are commonly used in everyday conversation to express the need for rest or sleep. Whether it's after a long day at work or to recover from a night out, grabbing some z's is an important part of maintaining good health and staying productive. So go ahead, pick your favorite synonym and catch some much-needed sleep!