Fig. 4From: Free-living core body temperature monitoring using a wrist-worn sensor after COVID-19 booster vaccination: a pilot studyPredicted CBT and reference CBT over a participant’s recording time. The time the participant spent in bed is highlighted in green. Periods during which the participant did not wear the sensor are marked in light grey. The dark grey field around the black line represents the confidence interval for CBT as indicated by the fabricant of the ingested telemetric pillBack to article page