Magnesium for Sleep: The Mineral Most of Us Are Missing
How this essential mineral supports deep sleep and how to incorporate it into your evening routine.
Magnesium deficiency is extraordinarily common — estimates suggest that up to 75% of Americans don't meet the recommended daily intake. This matters for sleep because magnesium plays a crucial role in the function of GABA receptors in the brain, which are responsible for quieting neural activity and promoting the relaxation response.
Supplementing with magnesium in the evening has helped many people I know sleep more deeply and wake less frequently during the night. The form matters significantly: magnesium glycinate is the most bioavailable and least likely to cause digestive upset; magnesium citrate is also effective but can have a mild laxative effect at higher doses.
In addition to internal supplementation, magnesium can be absorbed through the skin via Epsom salt baths. A warm bath with two cups of Epsom salts for twenty to thirty minutes before bed works as both a magnesium delivery system and a relaxation ritual that lowers core body temperature — a key signal for sleep onset.
Ingredients
- 200 to 400mg magnesium glycinate supplement (start with lower dose)
- OR 2 cups Epsom salts for bath soak
- Warm bath water
- Optional: a few drops of lavender essential oil for the bath
How to Use
- 1Take magnesium glycinate supplement thirty to sixty minutes before your intended bedtime.
- 2For the bath alternative: draw a comfortably warm bath and dissolve two cups of Epsom salts.
- 3Add a few drops of lavender oil if desired.
- 4Soak for twenty to thirty minutes.
- 5Pat dry and allow body to cool briefly before going to bed.
- 6Consistency matters — try this protocol for two weeks before evaluating results.