Feasibility of longitudinal sleep monitoring among Kenyan healthcare workers using wearable technology

Abstract Although adequate high-quality sleep is essential for optimal cognitive functioning, information on sleep and circadian rhythms among healthcare workers in resource-constrained settings remains scarce. We conducted a 12-month longitudinal study across five healthcare facilities using Fitbit Inspire 2™ devices. Sleep duration and irregularity were broadly comparable to higher-resource populations; observed differences in circadian metrics were largely explained by age. These findings support the generalizability of wearable-based sleep and circadian algorithms across contexts when key demographic and societal factors are considered.