Smaller Web

Last night when I went to bed Charlotte had started work on her web.  Not sure how she sees but there is a street light on my corner and the yard is quite light, so.  Her web this morning is smaller but her meal is a bit bigger.  Will she tear it down or leave it up today.  And what happens when I clean up the flower bed and take down the tall sunflower she is anchored to, I may have to leave it up til she leaves the area.