Restorative poses are typically much more supported using props. Yin Yoga is designed to gently put tension on connective tissues like ligaments, tendons and fascia, which is a layer of tissue that surrounds your muscles. Instead of moving through poses in a matter of seconds without letting the muscles relax, Yin Yogis hold a pose for a matter of minutes... Use the Yin-Yang feng shui theory with feminine (Yin) and masculine (Yang) energies with simple and mindful decor for good feng shui in your home. Yin/Yang yoga is a practice that balances the slow-paced Yin yoga with the traditional Yang yoga (Ashtanga and Hatha).
Working with the connective tissues takes a lot of body... Restorative yoga is wonderful for beginners, but yin, in my non-humble opinion, is an intermediate practice at least. This class is literally the fountain of youth.