My mother has been diagnosed with mycobacterium other than tuberculosis and have been taking these medicines and since then her saturation levels have been maintained at 98-99 when checked in day and while sleeping 97 while sleeping on her side but when she sleeps at her back I observe her saturation levels at 95-96 and I also observed her doing certain type of activity daily kicking her one leg and hand in similar pattern then I kept pulse oxy mere on her finger which showed a drop in saturation level 94 immediately when I asked her to sleep on her side saturation back to normal. Is this any kind of sleep disorder?