This podcast episode explores the science of sleep optimization, focusing on various factors such as sleep duration, light exposure, air quality, bedroom temperature, diet composition, and the effects of THC and caffeine on sleep. It delves into the role of heating the body through exercise and heat modalities in promoting sleep, as well as the effects of exercise and heat on growth hormone and prolactin. The episode also discusses lifestyle factors that can promote slow wave sleep, including sauna use, exercise, sexual activity, cognitive activity, meditation, and scented oils. Additionally, it explores the impact of carbohydrates on sleep stages and the relationship between carbohydrate intake and REM sleep.