If you're not rested enough, it can affect your work, you know. I was scolded enough times before for risking misplaced strokes of my brush.

[Even if she is scolding, her tone is soft and understanding.]

It frees you the time to work on more complicated parts of making the clothes. Don't be afraid to ask for help or delegate when you need to, either. That's part of being the boss, you know.