One of the most popular meditation apps, Headspace has resources for beginners as well as people who have been meditating for a long time.  It has themes such as sleep, stress, eating, and much more!

keywords: meditation, sleep, stress, mindfulness, eating, embodiment

Insight Timer is a free app with hundreds (maybe thousands!) of meditations, talks, and courses on various facets and approaches to mindfulness for any belief system.

keywords: meditation, mindfulness, stress, anxiety, sleep, embodiment