Yoga Nidra, or yogic sleep, is a deeply relaxing practice induced by guided meditation, where you simply rest in an altered state of consciousness between sleep and wakefulness. It’s a passive and effortless experience; no concentration is needed. For one hour, you’ll lie down in a comfortable space and simply follow the instructions to shift your awareness. It feels like 2+ hours of deep sleep. You may experience vivid colours, visual images, sounds, or a sensation of falling that some people find disturbing.