Henst RHP, et al. - In adults regardless of habitual sleep duration, researchers analyzed the impacts of sleep extension interventions on cardiometabolic risk factors. The study sample consisted of 138 candidates who were either healthy (n = 14), healthy short-sleeping (n = 92), overweight short-sleeping (n = 10), or pre- or hypertensive short-sleeping (n = 22) people. According to this systematic review, increasing sleep duration over a period of 3 days to 6 weeks is a viable, implementable intervention that can improve direct and indirect insulin sensitivity measures, as well as appetite and nutritional consumption. In other cardiometabolic risk variables like anthropometric results, blood pressure, inflammatory, sympatho-adrenal or metabolic markers, depression and anxiety, physical activity and resting metabolic rate, however, no modifications were noted. This review offers preliminary proof of a sleep extension role to enhance cardiometabolic results and guidance for future cardiometabolic health and sleep studies.