Intelligent and Interactive Positional Sleep Monitoring – Night Shift Sleep Repositioner Night Shift uses vibrotactile feedback to discourage supine sleep and treat mild to moderate sleep apnea. Supine feedback is initiated only after the patient falls asleep; the frequency and intensity of feedback adapts to meet the requirements of each user. Web-based reports provide compliance information associated with changes in sleep position, efficiency and snoring.The low-profile enclosure and quick-release magnetic buckle enclosed in a soft silicone neck strap provides a comfortable, safe and secure fit.