I'm falling asleep when I meditate. How can I address this?

It's very common for even the most experienced meditators to feel sleepiness during meditation. Joseph Goldstein talks more about this in the video and meditation in Session 6 of The Basics course titled Challenges of Meditation. In case you'd prefer to just read about it - here's a helpful article by Sharon Salzberg on how to work with it: https://tricycle.org/trikedaily/advice-dealing-sleepiness-meditation/