Yoga nidra might be a path to better sleep and improved memory

Michael Stone The Inner Tradition of Yoga: A Guide to Yoga Philosophy for the Contemporary Practitioner

Paramahansa Yogananda Autobiography of a Yogi (Self-Realization Fellowship)

Richard Freeman The Mirror of Yoga: Awakening the Intelligence of Body and Mind

Eric Hagerman Spark!: How exercise will improve the performance of your brain

Sam Harris Waking Up: Searching for Spirituality Without Religion

Charles Spence Sensehacking: How to Use the Power of Your Senses for Happier, Healthier Living