Once you open the Calm app, you're instantly embraced by the rustling sounds of a mountain lake and the soothing chirps of birds. You can then choose from a series of guided meditation plans for Stress, Personal Growth, Relationships, etc. There are also Sleep Stories that can help you drift to sleep. Most sessions are about 10 to 14 minutes, which is just enough to really relax you without taking up too much time.
What's also great is that you can change the background sound and adjust the volume, making it easy to focus on the lulling voice of the instructor, feel comfortable with giving in to the session, and allowing yourself to change the way you perceive your circumstances. The first session for most plans is free. To access the rest of the sessions within the plan, you'll need to upgrade to premium. The good thing is you can revisit completed sessions and listen to them over and over again!