"The Tibetan Yogas of Dream and Sleep" by Tenzin Wangyal Rinpoche is excellent. The terminology can feel alien or intimidating, but if you're receptive you can see results quickly. Bonus: The author & his organization give many workshops, in the US and abroad, even online.
Awesome to see someone else familiar with Rinpoche. I came in this thread to mention it. Also worth noting is that they have two Youtube channels [1] [2] that they regularly share guided meditations from.
