The Sleep Coach Podcast
Improve sleep, restore energy, balance hormones, and wake up restored for the midlife woman
The Sleep Coach Podcast
Episode 4: Could Your Gut Be Keeping You Awake? The Surprising Gut-Sleep Connection
Use Left/Right to seek, Home/End to jump to start or end. Hold shift to jump forward or backward.
If you've been struggling with restless nights, waking up at 3am, bloating, digestive issues, or feeling exhausted no matter how much sleep you get, your gut may be playing a much bigger role than you realize.
In this episode, we're exploring the fascinating connection between your gut and your sleep—and why healing one often helps improve the other.
You'll learn:
- Why your gut is often called your "second brain."
- How your gut bacteria influence sleep, mood, and stress.
- The surprising role serotonin and melatonin play in getting quality sleep.
- How inflammation and an unhealthy gut can contribute to insomnia.
- Simple, practical habits to start supporting both your gut and your sleep naturally.
Remember, sleep doesn't happen in isolation. It's influenced by the health of your entire body. When we begin supporting the gut, calming the nervous system, and addressing the root causes—not just the symptoms—we create the conditions for truly restorative sleep.
If this episode encouraged you, I'd love for you to subscribe, leave a rating and review, and share it with another woman who could use a better night's sleep.
Connect with Shelley:
Instagram: @shellfitmom
https://www.instagram.com/shellfitmom/
Welcome to the Sleep Coach. I'm your host, Shelly Simpson. If you're exhausted, but your mind won't shut off at night, you're in the right place. Each week, we'll unpack the science of sleep, hormones, and the nervous system so you can understand what's happening in your body and finally get the rest you deserve. Here we quiet the 3 a.m. mind, calm the body, and help you finally get the sleep you've been missing. Have you ever laid in bed completely exhausted, your body tired, your eyes heavy, but your brain and nervous system feel like they never got the memo? Maybe you wake up around 2 or 3 a.m. with your heart pounding. Maybe your mind starts racing the second the house gets quiet. Or maybe you sleep all night, technically, but still wake up feeling like you got hit by a truck. And most women immediately assume it's stress, it's hormones, it's anxiety. And yes, those things absolutely matter. But what many people don't realize is that your gut health may be playing a massive role in your sleep quality because your gut is not just where food gets digested. Your gut is deeply connected to your nervous system, your hormones, your inflammation levels, your stress response, your mood, and your sleep cycle. And during midlife, when hormones start shifting, the gut often becomes sensitive and more inflamed. So today, I want to break down what is actually happening physiologically inside the body, why gut issues can disrupt sleep, and why so many women feel exhausted but wired. And why the solution may go much deeper than another magnesium gummy and a white noise machine. Although, honestly, if another woman tells me she bought a lavender pillow spray and it didn't fix her insomnia, I think I may lose it. First, let's talk about something called the gut brain axis. This is the communication network between your gut and your brain, and this communication is happening constantly. Your gut and brain talk through the vagus nerve, hormones, neurotransmitters, immune signals, and inflammatory chemicals, which means when the gut is inflamed, imbalanced, or irritated, your brain receives those stress signals. So even if mentally you're trying to relax, your body may still feel unsafe internally. And this is why women say, I can't shut my brain off. But sometimes it's not just physiological. Sometimes the nervous system is reacting to a physiological stress happening inside the body. Your body doesn't separate emotional stress from inflammatory stress very well. To your nervous system, stress is stress. One of the most fascinating things about the gut is this that around 90% of serotonin is actually produced in the gut. And serotonin is important because it helps regulate your mood, emotional stability, nervous system balance, and yes, sleep rhythms. But here's where this becomes really important for women struggling with sleep. Melatonin, which is your sleep hormone, is actually made from serotonin. So if gut health is compromised, serotonin signaling can also become disrupted, which can affect melatonin production and your sleep quality. And this is one reason women can feel anxious at night, emotionally overstimulated, or exhausted, because they're just unable to sleep deeply. Your body may literally not be producing or regulating neurotransmitters efficiently. This is why also gut healing can sometimes improve your mood, anxiety, sleep, mental clarity, and emotional resilience all at the same time. Now let's talk about inflammation because inflammation is one of the biggest hidden sleep disruptors in midlife. When the gut lining becomes irritated or inflamed, the immune system releases inflammatory cytokines. These inflammatory chemicals can affect your brain, your nervous system, and the sleep centers of the brain, which then can increase hypervigilance, anxiety, nervous system activation, lighter sleep, and more night wakings. In other words, your body may technically be asleep, but your nervous system never fully powers down. And many women don't realize this because they assume, well, I'm tired, so I should sleep. But exhaustion and relaxation are not the same thing. You become exhausted and still physiologically stressed. This is why women with gut inflammation will often describe feeling that tired but wired feeling, feeling overstimulated, being sensitive to noise, anxious at night, restless, or like they just can't fully settle down. Ever been there? Any of those? All of them? Yeah. Now, let's talk about one of the most common things women experience waking up around 2 or 3 a.m. If your blood sugar drops too low overnight, your body sees that as a stress event. So your brain responds by releasing cortisol and adrenaline. Cortisol is happening to bring the blood sugar back up. And suddenly you wake up wide awake. Maybe your heart is pounding, maybe your mind starts racing, maybe you feel anxious for no reason. And many women assume I must just have anxiety, but physiologically, your body may actually be in a stress response state because blood sugar became unstable overnight. This is especially common in women who skip meals, under-eat protein, are dieting chronically, over consume sugar and caffeine, or have gut dysfunction, which is affecting your metabolism. And during midlife, hormone changes can make blood sugar regulation even more sensitive. So sometimes the 3 a.m. wake up isn't just random. Your body may literally be trying to save you from what it perceives as a stress threat. Now let's layer midlife hormones into this conversation. As estrogen declines during perimenopause and menopause, it affects your gut bacteria diversity, your digestion, inflammation regulation, and the integrity of the gut lining, which means many women start suddenly noticing bloating, constipation, reflux, food sensitivity, fatigue, anxiety, and insomnia, sometimes all at the same time. Have you experienced any of those? All of those? Yeah. And they think, what's wrong with me? Nothing's wrong with you. Okay. Nothing's wrong with you. Your body is just adapting to these major hormonal and neurological shifts. The problem is most women were never taught how connected these systems are. So what can actually help support better sleep from a gut health perspective? Here are some different strategies that you can experience with and try to see if they help you. First, stabilize your blood sugar with balanced meals, making sure you're getting good fiber, protein, and carbs, just hitting all those macronutrients. Increasing your protein and fiber, just like I mentioned. Protein really should be anywhere from 30 to 35 grams of protein per meal. I know that sounds like a lot, but it's necessary. And there are ways to do it. Reducing ultra-processed foods. That's a key. Supporting your digestion by eating, you know, good, healthy foods, taking a good probiotic, and also managing your chronic stress. Doing things like breathing, journaling, getting up from a stressful event or walking away from a stressful event, pausing before you react. That's a hard one. Nervous system regulation, getting some morning sunlight. And this, we've talked about this before. Trying to get out and let your eyes get that morning sunlight, getting direct morning sunlight first thing in the morning, anywhere between seven and eight, or possibly up until nine. Making sure you get direct sunlight in the morning. This helps to regulate the circadian rhythm. Limiting your late-night alcohol and sugar, or just completely eliminating alcohol, period. And we'll talk about that probably in another episode. Supporting the microbiome. Again, good nutritious foods, probiotic, maybe even looking into fermented foods. But no, this doesn't mean you need to become a woman who ferments her own cabbage and mason jars while listening to healing frequencies at sunrise. Okay. Unless that's your thing. Then honestly, I truly support you. But truly, small, consistent changes matter more than perfection. So if you've been struggling with sleep, please understand this. Sleep is not just a brain issue. It's not just a willpower issue. It's not just a stress issue. And it's definitely not because you're failing at relaxation. Sleep is a whole body process. And your gut, nervous system, hormones, inflammation, and brain are all influencing each other constantly. So instead of asking, why can't I sleep? A better question may be what is my body trying to communicate? What is it trying to tell me? Because sometimes the body isn't fighting you, it's signaling you. And the next question could be: are you listening to those signals? Do you know enough what to listen for? And how are you going to respond? And these are some things that you can experiment with and try to see if they can help you. Thank you for spending this time with me today. Be sure to hit follow so you don't miss what's coming next week. And before you go today, would you do me a quick favor? Please leave a rating in review. Your support will help more women find the show. Remember, you're not broken. Your body just needs support. Until next time, keep calming the mind, supporting the body, and creating the conditions for better sleep. Sweet dreams.