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You used to sleep like a rock. Now you're up at 3am wondering what changed. Good news: once you understand why, you can actually fix it. Up to 60% of perimenopausal women deal with this. You're not alone, and the research is clear. Here's what the studies show.
Every claim on this page is sourced. Tap any source to check it yourself.
Sleep Quality by Menopausal Status
Perimenopause is the toughest stretch for sleep. But here's the thing: it peaks, then it improves. The CDC data shows exactly when and why.
Sleep less than 7 hours
Trouble falling asleep (4+/week)
Trouble staying asleep (4+/week)
Not waking rested (4+ days/week)
Source: CDC/NCHS, National Health Interview Survey, 2015. Women aged 40 to 59. Data Brief No. 286.
more likely to be diagnosed with insomnia than men. Same stress. Same schedules. Different biology.
of perimenopausal women report sleep difficulties. That's the majority. Not a fringe complaint.
of sleep lost per night from caffeine consumed 6 hours before bed. A systematic review of 24 studies confirmed the effect.
higher hazard of heart failure linked to long term melatonin use in a preliminary study of 10 million+ adults presented at AHA Scientific Sessions. Important: this is a conference abstract, not yet peer reviewed or published in a journal. The finding is observational and cannot prove causation. More research is needed.
Real data on sleep and perimenopause barely exists. Help us change that.
We rejected 3 popular products. Here's why.
Every product we recommend has to pass our evidence standard. These didn't.
Every product here was selected from published clinical data. Not sponsorships. Not trends.
Schuster et al. 2025 (Nature and Science of Sleep, RCT, 155 adults): magnesium bisglycinate significantly improved sleep quality vs. placebo. NSF GMP Registered facility. Glycinate form has the strongest sleep specific RCT data and is better tolerated than citrate or oxide.
Every product is selected based on published clinical data, not sponsorship. See the full evidence on our What Works page.
Sleep is the foundation everything else is built on. And the best part? The fixes are surprisingly simple. Cool the room to 65°F. Cut caffeine earlier. Eat protein before bed to prevent the blood sugar crash that spikes cortisol at 3am. Talk to your doctor about magnesium, ashwagandha, or CBT I. If it's still rough, ask about micronized progesterone. It works on the same GABA pathway as sleep medications but it's actually replacing what your body lost. Women who tackle sleep first say everything else gets easier.
We're not doctors. We're women who read the studies. Always talk to yours.
Last reviewed: March 2026
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