fig4

Figure 4. Applications in human sleep states. (A) Sensing unit constructed from woven functional fibers on serpentine textile substrates; (B) Image showing the detection of body movement and sleeping posture in real-time (Scale bar: 10 cm); (C) Real-time monitoring of subtle physiological signals during the supine sleep position can be achieved (Scale bar: 10 cm); (D) Real-time monitoring of respiratory rates and heart rates. Comparative test results from a commercial oximeter are shown in the inset (Scale bar: 10 cm); (E) The photograph shows a patient being woken up by an alarm and illuminated lamp (Scale bar: 20 cm)^[84]. Copyright 2020 Elsevier.