Kennedy discusses the critical importance of sleep and shares her personal "sleep stack" to combat insomnia. She recommends wearing socks to bed to lower core temperature, taking two magnesium glycinate supplements, and practicing 4-7-8 breathing to activate the parasympathetic nervous system. Additionally, she highlights the benefits of a silk sleep mask for relaxation. Kennedy explains how these natural methods help reduce cortisol and allow the mind to let go of daytime worries, ensuring restorative rest without the need for pharmaceutical sleep aids.