
Wellness for every chapter of her becoming.
Formulated for her biology, through every season of life.
Every story shared here becomes a star.
Hover over a star to read her words, then send your own into the continuum.
Sleep is a skill her body remembers.
Cortisol, melatonin and the shape of a night that restores.
Your body keeps time
Your body runs on a 24-hour clock called the circadian rhythm. A small area of the brain keeps it. It tells you when to feel alert and when to feel sleepy.
Light is its main signal. Morning light says it is time to wake. Evening darkness says it is time to wind down.
Cortisol and melatonin
Cortisol is a hormone with a daily rhythm. It is highest soon after you wake. It falls through the day.
Melatonin works the other way. It rises in the evening, when it gets dark, and helps you feel sleepy. Bright light late at night can delay it.
The shape of a night
Sleep moves in cycles of about 90 minutes. Each cycle includes light sleep, deep sleep and REM sleep. Most adults complete four to six cycles a night.
Deep sleep comes mostly in the first half of the night. REM sleep, linked with dreaming, comes mostly in the second half. A shortened night mainly costs you REM.
Habits that help
Adults should aim for at least seven hours. Keep a regular bedtime and wake time. Get daylight in the morning. Dim the lights in the evening.
Keep your bedroom cool, dark and calm. Limit caffeine later in the day. If sleep stays poor, or you snore loudly or stop breathing at night, see your doctor.
FAQs
Adults need at least seven hours. Needs differ, and the quality of your sleep matters as well as the length.
Yes. Night sweats and changing hormones disturb sleep for many women. Talk to your doctor if it is affecting your days.
References
- Centers for Disease Control and Prevention. How much sleep do I need?
- StatPearls. Physiology, Sleep Stages, ncbi.nlm.nih.gov/books/NBK526132.
- American Academy of Sleep Medicine, sleep stage descriptions, as summarised.
This article is for information. It is not medical advice. Speak to your doctor about your own health.
Keep reading
Antioxidants and summer skin.
Why UV, heat and long screen days stress your skin, and what antioxidants can and cannot do.
Hormones are not the enemy.
What perimenopause changes, what stays the same, and why the answer was never to silence the signal.
Your gut is your second mind.
The microbiome talks to your skin, mood and immunity. Here is what the research shows, and what it does not.

