I just recently began using the sleep mat tracking device. I placed it underneath my mattress exactly as the instructions stated. I’m finding that the readings are very unlikely to be accurate, namely because I slept for 12 hours Sunday night and the tracker has me down for 2-3 hours. Is the tracking mat ineffective and/or inaccurate when used with a Sleep Number bed? Sleep Number beds are not like other mattresses- they’re air beds.