1. Headspace "Sleepcasts" 

If you’ve been on the internet, you’ve likely seen one of Headspace’s advertisements. Headspace is an app that offers mindfulness tools to everyday life. Each episode of "Sleepcasts" by Headspace is an audio tour of a calming destination, such as a desert campfire or a tranquil lakeside lodge, which expertly blends sound and visualizations. The ambient sounds of the destination and the comforting voice of the narrator will put your worrying mind at ease in a heartbeat.