Q.Why Are My Ostrich Fern Leaves Curling?
I live in Vermont. My apartment is fairly warm, I do not have a lot of windows. It is in a corner next to a window. I have a humidifier set up next to my plant that has been there for two days now. The soil seems moist. Some of the leaves are starting to curl and I’m not sure what that means?

Certified GKH Gardening Expert
Unfortunately, your photos did not come through. Leaves curl for a number of reasons, including not quite enough humidity, low air flow, and even overwatering.
Here is an article to help you care for ferns indoors:
https://www.gardeningknowhow.com/houseplants/ferns-houseplants/growing-ferns-indoors.htm