We have many bassinets and a crib, and the only thing our newborn will sleep in is this crib, he doesn’t like to be flat. the head portion of the swing is slight elevated, which is what our son loves in order to sleep. The sides are also curved so this can replace any sleeping wedges, and since he is on his back, he can turn his head to both sides without anything near his face. We fold the dog ears behind the head to keep the face area more clear, keep our son in a halo swaddle, and keep the swing on the lower of the 2 tilt options. Our pediatrician is more than fine with us using this for him to sleep in, provided the things I’m describing above and below. Always always always watch to make sure things aren’t covering his mouth or face, unbutton or unzip slightly near his neck and fold materials so there’s a free V space by his neck. There’s a timer for the music, but not the actual swing, which doesn’t make sense...but you can buy outlet timers and plug the swing into it as an alternative. Once the baby is 4 months or more, then they recommend to raise it one small level up if desired. We actually bought another of this swing, one for both floors. The swing motions are great, many different speeds and it’s low enough noise to sleep with. Our son honestly sleeps in this without any rocking, it’s more about she shape of the body space and elevation that he likes. We highly recommend it.