Four Experiments inspecting the validity of HSAT to the prognosis of OSA in patient populations with major cardiorespiratory morbidity achieved our inclusion conditions. HSAT devices that use regular sensors are unable to detect hypopneas only affiliated with cortical arousals, which might be included in the suggested AHI scoring rule in https://www.refreshsleep.net/adult-and-child-sleep-clinic-our-services/restless-leg-syndrome