The Leg Extension kit will raise the Co-Sleeper® from 24 (normal bed height) to 30 (pillow top bed height) in 2 increments. When full 6 extensions are used, they allow for comfortable use as a changing table. Warning: Please order only one kit. Raising Co-Sleeper more than 30 will allow the Co-Sleeper to become unstable. For bed heights taller than 30 it is recommended that a platform should be constructed with a 2 lip around the top to prevent Co-Sleeper® movement.