The HappySleep app can connect to the Aliexpress Sensor belt: https://www.aliexpress.com/item/1005004679211131.html?spm=a2g0o.productlist.0.0.100256f23qJmrW&algo_pvid=bec7cc2a-ff27-458e-b699-65c4a5f90b88&algo_exp_id=bec7cc2a-ff27-458e-b699-65c4a5f90b88-5&pdp_ext_f=%7B%22sku_id%22%3A%2212000030073579719%22%7D&pdp_npi=2%40dis%21USD%21112.6%21104.72%21%21%21%21%21%402101e9d416700497264893054e9446%2112000030073579719%21sea&curPageLogUid=VYldKcYwm4Sn Features: • Real-time sleep status monitoring (1) In bed condition monitoring, identify with someone on the bed or not, on the bed or off bed, when on the bed, the body is at rest or constantly in the state of motion; (2) sleep respiratory …