This collection was very helpful problem solving and providing clarity on how we were supporting our baby to sleep and! How to do pop ins and weaning the night feeding was super useful, as well as transitioning from three naps to two naps. Sometimes we found the videos to be repetitive of simple concepts and wished they would go into more depth, especially if things did not go as suggested (e.g. when baby refuses a nap and it pushes last wake window later, would you still offer a late third nap or do an earlier bedtime? If baby wakes and cries when finished weaning what should you do: offer full feeding, shortened feeding, start weaning again from beginning?) Often times we would go back to review materials, it was great having the attachments all in one place. We would have liked to have the option to read about, as well as, listen to videos on the offered materials. Overall well worth the purchase! Our baby is now a good sleeper and we feel confident helping her when she encounters difficulties.