Yoga Nidra for Relaxation and Sleep. This 20 minute sleep talk down uses Yoga Nidra techniques to guide you into a deep state of sleep and rest. This is a spoken meditation that is designed to help you fall asleep and ease insomnia. Today’s 20 minute guided meditation is designed to improve the quality of your sleep and to help you fall asleep. You can also listen to this guided meditation if you have awoken in the middle of the night and you would like to fall back asleep. This meditation is great for relaxation and stress management. Even if sleep does not come, this sleep meditation will give you a much better nights rest than tossing and turning.