When 8 Hours Isn't 8 Hours
Some nights, stress keeps me up all night. I’m wide awake until 3 am, running scenarios through my mind and searching for solutions to all the problems. It happens maybe once every other month, and it kicks my butt. That’s insomnia.
But this piece is not about insomnia.
There’s a sleep problem that’s more insidious because it is harder to identify. You fall asleep. You stay asleep. You get your seven or eight hours. And you wake up exhausted anyway. There is no dramatic sleepless night to point to. Just a persistent, low-grade drain that is quietly damaging your body.
It’s called non-restorative sleep, and it’s more common in midlife women than most people realize.
"Just a persistent, low-grade drain that is quietly damaging your body."
What’s actually happening
Non-restorative sleep isn’t about the number of hours. It’s about what happens during those hours. Deep sleep, specifically REM and slow-wave sleep, is necessary for your body to do its repair work. This is when it gets busy consolidating memory, regulating hormones, and reducing inflammation. When those stages get disrupted or compressed, you don’t get the restoration. You get your “sleep hours” in, but the recovery doesn’t happen.
And, yes, once again, we can point to chronic stress as one of the main culprits. Elevated cortisol suppresses those deep sleep stages. The more stressed you are, the less restorative your sleep becomes, which increases stress, which further disrupts sleep. It’s a cycle that doesn’t break on its own.
Estrogen and progesterone do a lot to regulate your mood and cognition. They also affect how you sleep at a structural level. When your hormones are disrupted, you can log eight hours and still miss the deep stuff entirely. It’s not a coincidence that sleep falls apart during perimenopause. And it’s why going to bed earlier or sleeping later still misses the point.
What actually helps
"Put down your damn phone."
Your body temperature has to drop slightly to initiate deep sleep. Keeping your room cool, between 60 and 67 degrees, helps get you there. Even low light signals your brain to stay alert, so invest in some good blackout curtains. Your nervous system is still scanning the environment while you sleep. Darkness tells it to stand down. And put down your damn phone! You already know that blue light suppresses melatonin, but the bigger issue is what you’re doing with your phone. Scrolling keeps your brain in a reactive state right up until you close your eyes. That’s not a condition from which you drop into deep sleep.
Stress management matters more for non-restorative sleep than it does for ordinary insomnia, because cortisol is directly suppressing the deep sleep stages you need. Even five minutes of mindfulness practice before bed reduces cortisol measurably. A magnesium bath or lotion will help support the nervous system’s ability to downregulate. This mineral is commonly deficient in women. Journaling helps, too, but don’t do your reflective, thought-provoking journaling at night. Try stream of consciousness journaling to get the noise out of your head and onto paper so your brain stops chewing on it at 2 am.
And, your sleep hygiene: same bedtime, same wake time, weekends included. Your circadian rhythm is a biological system. It responds to consistency the way a muscle responds to training. No supplement does what that does.
When to get help
Other common problems that lead to non-restorative sleep include sleep apnea, hypothyroidism, chronic pain, and GERD, all of which are underdiagnosed in women. If getting chronic stress under control doesn’t move the needle, these other issues are worth ruling out. Ask your doctor about a sleep study to check for apnea, and get bloodwork to look at thyroid function, iron, and B12. If you are experiencing non-restorative sleep, that is your body trying to tell you something.
Sleep is the foundation on which everything else is built. If you’re doing everything right and still waking up exhausted, your habits aren’t the problem. Something else is. That’s worth investigating.
At Here I Am Self-Care, we curate products for women who take this stuff seriously. If that's you, come take a look.
Sources
Cortisol and deep sleep: Vgontzas, A.N. et al. “HPA Axis and Sleep.” Endotext, NCBI Bookshelf, 2020. https://www.ncbi.nlm.nih.gov/books/NBK279071/
Mindfulness and cortisol reduction: Sanada, K. et al. “Meditation interventions efficiently reduce cortisol levels of at-risk samples: a meta-analysis.” Health Psychology Review, 2020. https://www.tandfonline.com/doi/full/10.1080/17437199.2020.1760727
Magnesium and sleep in women: Zhang, Y. et al. “Magnesium Intake and Sleep Disorder Symptoms.” Nutrients, 2018. https://pmc.ncbi.nlm.nih.gov/articles/PMC6212970/
Sleep apnea underdiagnosed in women during menopause: Johns Hopkins Medicine. “How Does Menopause Affect My Sleep?” https://www.hopkinsmedicine.org/health/wellness-and-prevention/how-does-menopause-affect-my-sleep
Estrogen, progesterone, and sleep architecture: Stanford Lifestyle Medicine. “How Perimenopause Affects Sleep.” https://lifestylemedicine.stanford.edu/sleep-perimenopause/