If the data displayed on the APP is incomplete / there is no data after using it, the possible reasons are as follows: The device is not connected with APP(please keep the power on while using APP). The Smart Pillow is not activated with the network (before using the pillow, you need to use the APP to connect the Nitetronic Anti-Snore Smare Pillow to activate). The network connected to the pillow is abnormal / the network is disconnected while using APP.