Gentle—Slow moving, breath-centered postures with little-to-no owing sequences. Ideal for new practitioners, anyone needing a slower pace, or those seeking a reintroduction to practice. Lots of props for great support and simple instructions. No flexibility or previous experience required. Yoga Nidra works with the autonomic nervous system. The autonomic nervous system regulates processes of the body that take place without a conscious effort (heartbeat, breathing, digestion and blood flow). This system also includes the sympathetic and parasympathetic nervous systems.