The sleep sensor/ the non-stop function doesn't work. What can I do?

In order to be able to use any of these two special functions, please make sure that you have ordered and received a myHummy with Premium sound device (MC01) or one with Premium App sound device (MB01 and MB02). The sound devices of these models are heart-shaped and turquoise. If this is not the case, please check your order to make sure that you have ordered myHummy WITH Premium or Premium App sound device and/or contact our customer service.