Written by a registered nurse

Sleep education hub

Clear, research based answers on melatonin and sleep after 40, from dose and timing to perimenopause and the 3am wake up.

Tyler Smith, RN Tyler Smith, RN, BSN
Every article cites its sources

October 17, 2026

Can melatonin make sleep worse? Why the dose, not the melatonin, is often the problem

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A woman over 50 resting in bed in a bright bedroom after a good night of sleep
A woman relaxing in a wooden chair by a sunny window, resting calmly.

Can melatonin cause dementia? A nurse separates the worry from the research

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Magnesium glycinate vs melatonin: which is better for sleep, and can you take them together?

Magnesium glycinate vs melatonin: which is better for sleep, and can you take them together?

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A home blood pressure monitor and cuff on a nightstand beside a warm lamp in a calm bedroom.

Does melatonin raise blood pressure? A nurse on melatonin and blood pressure medicine

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Can you take melatonin with HRT? What women on estrogen should know

Can you take melatonin with HRT? What women on estrogen should know

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Misty sunrise over green hills, waking up clear after a low dose of melatonin

1 mg melatonin: is a low dose enough? A nurse on low dose melatonin after 40

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A cup of herbal tea on a wooden table in warm evening light.

Valerian root for sleep: what it does, dose, side effects, and taking it with melatonin

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