Yoga Nidra works best with very slow, gentle, and unobtrusive background music – typically soft instrumental ambient or nature-based sounds played at a low volume, with no lyrics. These tracks often feature sustained drones, flutes, singing bowls, or subtle natural atmospheres (rain, ocean, wind) and may include low-frequency or binaural tones to encourage brainwave shifts. In short, choose calm, consistent, lyric-free music that supports (but does not compete with) the guide’s voice and deep relaxation.