Place a stud finder flat on the ceiling. Move it from left to right until a joist is located in the area where you want to hang the hammock chair. Use the stud finder to pinpoint the center of the joist. Mark this area with a pencil.
Pre-drill a 5-inch-deep hole into the joist with an electric drill and wood drill bit.
Twist an eye bolt into the pre-drilled hole with your hand until all threads have disappeared. Then attach the rest of the hammock chair assembly to the hook on the eye bolt.