She doesn’t understand what the word “restless” means, because she’s been working for so long that she doesn’t understand what “rest” is. There’s a certain feeling of being displaced, the same way a nomad calls “here” home, because her bed has become a place to think and plan for tomorrow.
It’s never-ending and there’s always something to be done, but no matter how hard or how long she works she never gets anything done. There’s satisfaction found in completed tasks, so as long as she’s not satisfied she’ll keep getting out of bed to accomplish exactly nothing.
In this way, she ends up being in the same situation as the sluggard, and proves that sometimes opposites can still end up being the same.