rest from (doing) (something)
To stop doing some activity in order to recover one's physical or mental energy. We decided to rest from painting the house and have a cold drink in the shade. Why don't you come downstairs and rest from studying for a while.
rest from something
to take it easy and recover from something. I need to take a few minutes and rest from all that exertion. When you have rested from your running, please come in here and help me.