Julia Worrall, a critical care nurse with over 25 years of experience, shares staggering insights as a sleep expert. She discusses the surprising connection between vitamin D levels and sleep quality, emphasizing its critical role in overall health. Worrall explores why many wake up between 3 AM and 5 AM, and offers practical tips for improving sleep through breathing techniques and sleep posture. Listeners will find solutions to common issues like clenching and dry mouth, making this conversation essential for anyone looking to enhance their sleep.