The phrase "to get some rest" means to take a break from work or activity in order to relax and rejuvenate oneself. It refers to getting enough sleep, taking naps, or engaging in other activities that help one feel refreshed and energized.
Sentences with «to get some rest»
He couldn't get the rest of the leadership team to agree to develop the product the way he wanted to, he says, so he quit to do it himself. (inc.com)
One note: I did add a bit more applesauce because I couldn't get the rest of the flour to mix in. (chefsavvy.com)
You might worry that your exercise regimen and diet may not be enough, and feel that a pill would help get you the rest of the way there. (dietsinreview.com)