If any parent plan to get a baby cradle, I highly recommend getting one of this too. It keeps the baby cradle rocking continuously and helps baby sleeps longer so mom can do housechores or have a little me-time. It has certainly helped me to get a lot more things done compare to having to rock it continuously. What’s great is that it is quite compatible with most baby cradle hence very versatile. Even the adaptor is easily found in the hardware store should yours broke. My Polar spring cot auto cradle has been helping my kids have better naps during the day for the last 4 years :)