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
A woman in her 50s relaxing on the couch in the evening with a cup of herbal tea.

Melatonin and alcohol: is it safe to mix them? A nurse explains

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A woman stretching in bed as morning sun comes through the curtains.

How much melatonin is too much? A nurse on high doses, overdose, and what to do

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A woman relaxing on a deck chair at sunset with a book and a cup of tea.

Melatonin and heart failure: what the study really shows, and what has happened since

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A smiling woman in her 50s relaxing in a chair at home in the evening

How long does melatonin last, and how long does it take to work? A nurse explains

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Clear supplement softgels scattered on a white table

Is melatonin bad for you? A nurse on nightly use, tolerance, and the 2025 heart study

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A woman reading a book in bed as part of a calm bedtime routine

Perimenopause sleep problems: 8 symptoms nobody warns you about, and what helps

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A woman in her 40s sleeping peacefully in bed by a warm bedside lamp

Melatonin for perimenopause: a nurse's guide for women over 40

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