Excellent product!
This is the only sleeping bag/swaddle that my newborn baby uses, as it works so well. His startle reflex mean that he constantly wakes himself up, but the design of these sleeping bags means that his hands remain away from his face and he can’t wake himself, resulting in him having a decent and uninterrupted sleep. We love these so much we have gone out and bought more so that we always have a clean one on hand!