Here are my thoughts on the app "Calm"...
"Calm" is an app that contains many recorded meditations and sleep stories. There are even some sleep stories by popular artists such as Harry Styles and Matthew McConaughey. Although it can be very helpful, a lot of their resources are locked and require a monthly subsription. So it that way, I do not think this app is worth it. In its place, I would search for sleep stories and meditations on Spotify. These are always free and just as good as the ones available on "Calm". Some of my favorites are the Get Sleepy playlist and Tracks to Relax!