Yoga Nidra, or yogic sleep, was the favorite practice my yoga teacher training class through the entire training. Any time we had a choice for the type of class we were going to take, we voted for Yoga Nidra. Every time. It is a much less physically draining form of yoga, but we didn’t choose this out of laziness or a chance for a nap. Nope, not at all. It was the effect that the practice had on our mental state as well as our physical well-being.
Yoga Nidra is a form of meditation that puts you in a state of consciousness that is between awake and asleep. (This state, hypnagogia, is the “going to sleep” state, not the “waking up” state, which is called hypnopompia.) Being in this state leaves the person practicing Yoga Nidra in a completely relaxed state.
How relaxed? A 45-minute Yoga Nidra has the same effect as three hours of actual sleep. Although Yoga Nidra is not a substitute for actual sleep, many of the same effects as sleep overlap. This relaxation translates into a reduction in stress and a better ability to relax and focus.
Walter Reed Army Medical Center has been using Yoga Nidra to help rehabilitate soldiers in pain, and to help treat PTSD for soldiers returning from Iraq and Afghanistan. In fact, in 2010, the Surgeon General of the United States Army endorsed the practice of Yoga Nidra as a complementary alternative medicine for chronic pain. Hearing this in my yoga teacher training piqued my interest: The United States Army uses *and endorses* this practice in conjunction with other treatments to help deal with physical pain and to help cope with PTSD.
Now that I have listed the benefits, some of you are likely wondering what this class entails and whether you can do poses and nearly sleep. Well . . . there are no poses besides Savasana, the corpse pose. Yes. You are lying down through the entire practice! This is a guided meditation in which the teacher leads you through paying specific attention to different parts of your body. As you focus on how each part feels, you notice if you are holding tension there, release it, and deepen your relaxation. Unlike some other forms of guided meditation, this doesn’t lead you through a series of mental images but asks you to pay attention to your own body and how it feels.
Now that you know a bit about the benefits and how the practice is done, a bit of the history: Yoga Nidra is as old as the practice of Yoga itself. It is mentioned in the Upanishads, in Mahabharata, Book 1, section XXI. This particular epic was compiled between the third century BCE and the third century CE, with the oldest preserved parts having been compiled around 400 BCE. In short, this practice is very old.
As old as this practice is, most of us probably find the concept of just focusing our attention on ourselves and our bodies and how we feel without being distracted to be a novel thing to do. Even if we make time for ourselves or spend time in prayer and meditation, we don’t just spend time paying attention to how we feel, physically. We carve out time to work out or even time to read or get involved with our hobbies. We do not, however, regularly make time to just pay attention to our bodies — to relax and just spend time scanning how we feel. We should.


