The Back to sleep range by Prince Lionheart are award winning products that include sound & motion "back to sleep" aids such as the world renowned Slumber Bear Premium and Slumber Bear Plus (which comes with a Silkie baby comforter) as well as the Thermaflow Sleep Sacks.  The Slumber Bear contains a Sound & motion "back to sleep" audio pacifier which is triggered to play sounds recorded from inside the mothers womb when the baby moves or cries to sooth baby back to sleep.  Here we also offer the heartbeat sleep positioner which has a heartbeat sensation that is triggered when the baby moves to give it reasurance as if baby was resting on mum or dad's chest.  All these products have been ground breaking and are incredibly innovative!  We used the Slumber Bear Premium when our daughter was born and she loved it - and still does!