A Large-Scale Study of a Sleep Tracking and Improving Device with Closed-loop and Personalized Real-time Acoustic Stimulation. - Anh Nguyen 001; Galen Pogoncheff; Ban Xuan Dong; Nam Bui; Hoang Truong 002; Nhat Pham; Linh Nguyen; Hoang Huu Nguyen; Sy Duong-Quy; Sangtae Ha; Tam Vu 001 (CoRR, 2022)