Yin expert Sarah Powers offers this sample series, and suggests that you start by holding each pose for one to three minutes. Come out slowly on an inhalation and rest for a minute in a neutral position before moving on. As the postures get easier, you can gradually extend the time you hold them.
Wide-Knee Child's Pose with Twist
From a kneeling position, push back toward your hips, spreading your knees as wide as they will allow without straining. Twist your right shoulder toward your left knee, stretching your left arm back. Rest your head on the floor or on your right upper arm. Repeat on the other side.