The Sleep Detective Podcast

Martha Lewis takes a functional health approach to insomnia, and her podcast reflects that. She is a certified sleep expert and functional health coach with 270 episodes under her belt, each one focused on digging beneath the surface to find out why someone actually cannot sleep, rather than just telling them to put the phone down an hour before bed. Recent episodes cover topics like how protein intake affects sleep quality, what your liver has to do with middle-of-the-night wakeups, and the connection between stress hormones and hyperarousal. She also brings on guests regularly, which keeps the perspective fresh. Lewis is at her best when she breaks down the science of why common advice fails for chronic insomniacs. Her take is that insomnia usually has a physical root cause that standard sleep hygiene cannot fix, and she walks listeners through lab work, nutrition adjustments, and nervous system regulation techniques that address those roots. The show holds a 4.1-star rating from 29 reviews, with listeners praising the practical, actionable content. A few reviews note that the emphasis on testing and functional medicine can feel overwhelming if you are just starting out. But for anyone who has been told their bloodwork is normal while still staring at the ceiling every night, Lewis offers a different and welcome angle.