The links between perimenopause and insomnia, explained by a nurse practitioner.

A woman with her face in her hands, sitting up in bed.

by Caylin Cheney, Advanced Registered Nurse Practitioner

If you've been waking up in the middle of the night or lying awake, unable to fall asleep for no obvious reason and you're a woman in your late 30s, 40s, or early 50s, there's a chance perimenopause is to blame. Add in unpredictable periods, night sweats, or feeling intensely emotional for no reason you can name, and it starts to add up. You may be in perimenopause, and I promise you, you are not alone.

Perimenopause is one of those experiences that almost every person with a uterus will eventually go through, and yet even in 2026, it’s still under-discussed, under-researched, and under-treated. Many of my patients tell me they had no idea what perimenopause even was until they were already deep in it.

So let's change that. Here's what I want you to know — starting with why sleep is so often the first thing to go.

Wait, what is perimenopause?

Perimenopause is a natural phase (before the better-known menopause) where your ovaries start ramping down hormone production, primarily estrogen and progesterone. In your reproductive years, these hormones rise and fall in a fairly predictable monthly rhythm for most people.

In perimenopause, that rhythm starts to get erratic. Your ovaries are gradually running out of eggs and becoming less consistent in how much estrogen and progesterone they produce from cycle to cycle. Some months your estrogen might spike higher than usual; other months it dips low. This hormonal unpredictability, more than a steady decline, is what drives a lot of the symptoms people experience.

I’ve heard perimenopause described as the inverse of puberty – sort of the other bookend to our reproductive years. And just like with puberty, it can be a confusing and somewhat turbulent time when you’re going through it.

Much like puberty, perimenopause doesn't announce itself with a single clear signal, and it can differ for everyone. The most common early sign is a change in your menstrual cycle: maybe your periods come closer together or farther apart, they’re heavier or lighter than usual, or they stop altogether for a month or two before returning. Beyond your cycle, you might notice hot flashes or night sweats, mood swings, brain fog, fatigue, joint aches, or a new sensitivity to things that never used to bother you. And for a lot of people, it can cause insomnia or trouble sleeping.

Some people notice all of these symptoms. Some people notice almost none of it.

Menopause vs. perimenopause: What's the difference?

This is one of the most common points of confusion I hear in my practice, so let's clear it up: perimenopause is the transition, menopause is the destination.

The “peri” in perimenopause means “near” and comes from Greek. And that makes sense: Perimenopause is the span of time — often several years, but sometimes closer to a decade — leading up to your final period, during which your hormones are fluctuating and you may experience symptoms. Menopause itself is a single point in time, officially marked once you've gone 12 consecutive months without a period. That makes sense too, because “meno” means month and “pause” comes from “pausis” which means end. So, menopause literally means “end of monthly cycles.”

Everything after that point is technically called postmenopause (or “after” menopause), though most people just say "menopause" to describe that whole stage of life.

So if you're still getting periods, even irregular ones, you're in perimenopause, not menopause. And if it's been a full year since your last period, you've crossed into menopause.

*Perimenopause can be frustrating, but you don’t have to “just deal with it.” There are effective treatments that can help ease your symptoms.*

How perimenopause impacts sleep and sex drive

I already touched on some of the hallmark symptoms of perimenopause, but I want to spend more time on two areas that come up regularly with my patients and don't get nearly enough airtime: sleep and sex.

Perimenopause and sleep

Sleep disruption is one of the most frequently reported perimenopause symptoms, and it's rarely just one thing causing it. Night sweats can wake you outright. Fluctuating progesterone, which has a naturally calming, sleep-supportive effect, can make it harder to fall and stay asleep as levels become less predictable. Anxiety and mood changes tied to the hormonal shifts of this stage can also keep your mind racing well past when you'd like it to quiet down.

The frustrating part is that poor sleep and perimenopause symptoms can feed each other — bad sleep worsens mood and brain fog, and mood changes and hot flashes make good sleep harder to come by. If this is you, please know it's not a personal failing or something you should just be able to "manage better." It's physiological, and it's worth bringing up with your provider.

Perimenopause and your sex life

The other thing I hear from so many patients in this phase of life is a change in sex drive. Declining and fluctuating estrogen can lead to vaginal dryness, thinning tissue, and discomfort with penetration, which understandably can dampen desire. Hormonal shifts can also directly affect libido on their own, separate from any physical discomfort. And it's worth naming the ripple effects, too — night sweats disrupting sleep, mood changes, and feeling less at home in your changing body can all chip away at your interest in sex, even when your relationship with your partner hasn't changed at all.

The good news? These changes are treatable; you don't have to just accept a less satisfying sex life as an inevitable cost of this life stage. There are effective treatments, from vaginal moisturizers and lubricants to local estrogen therapy to broader hormone therapy, and a conversation with a knowledgeable provider is a great place to start.

Are you struggling with perimenopause symptoms? I’m here to help.

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How do I treat perimenopause symptoms?

It’s been really encouraging to hear more people talking about perimenopause in the last few years, because this isn't a stage of life you just have to grit your teeth through.

There are effective treatments that might be right for the symptoms you’re feeling:

Hormone therapy. For many people, hormone therapy is the most effective option for hot flashes, night sweats, and mood changes tied to fluctuating estrogen. It can come in several forms (pills, patches, gels, or sprays) and is often paired with progesterone if you still have a uterus, to protect the uterine lining. Hormone therapy isn't right for everyone (certain health histories, like some clotting disorders or hormone-sensitive cancers, change the calculus), which is exactly why this is a conversation to have with your provider.
Local vaginal estrogen. This is a lower-dose, localized option specifically for vaginal dryness, irritation, and discomfort with sex. Because it's absorbed mostly in the vaginal tissue rather than throughout your whole body, it's an option for some people who aren't candidates for systemic hormone therapy. It comes as a cream, tablet, or ring. (An interesting fact: sometimes vaginal atrophy can also throw off cervical cancer screening results. Sometimes if you get an unexpected result and are in menopause, we'll ask you to try some vaginal estrogen and then repeat the test in a few months.)
Non-hormonal medications. If hormone therapy isn't the right fit for you, several non-hormonal medications can help with hot flashes and mood symptoms specifically, including certain antidepressants and a newer class of medication developed specifically for hot flashes. There are also non-hormonal options for vaginal dryness, like moisturizers and lubricants, that can make a real difference on their own or alongside other treatments. Treatments like acupuncture can also be helpful.
Sleep-focused support. Because sleep disruption in perimenopause often has more than one cause, treatment usually does too. That might mean addressing night sweats directly, adjusting sleep habits, or, a short-term medication to help you get through a rough period.
Lifestyle and whole-person approaches. Regular movement, consistent sleep habits, limiting alcohol (which can worsen hot flashes and sleep for many people), and stress management won't undo hormonal changes, but they genuinely support how your body handles this transition and pair well with any of the treatments above. These six wellness basics are great fundamentals to keep in mind during any tough moment in life, perimenopause included.

The bottom line: there's rarely a one-size-fits-all answer, and it's common to try more than one approach before landing on what works for you.

You don’t have to navigate perimenopause alone

Perimenopause looks different for everyone, so there's no single fix that works across the board — but there is a lot you can do, and a lot I can help with.

If you're noticing changes in your cycle, sleep, mood, or sex life and you're not sure what's going on, those are all things we can talk about how to tackle together. You don't have to have it all figured out before you reach out — that's what I'm here for. Schedule an appointment today and let’s navigate this together.

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