What are sleep supplements and when do you take them?

Sleep supplements include the timing-signal hormone melatonin and a set of calming neurotransmitters and herbs (glycine, magnesium, L-theanine, GABA, valerian, passionflower). Take them 30 to 60 minutes before lights-out, in dim light, low to moderate doses.

Sleep support

Sleep support supplements: timing the wind-down

Late-evening cues, taken 30 to 60 minutes before lights-out.

Key takeaways

  • 30 to 60 minutes before bed, in dim light.
  • Melatonin lower is usually better, 0.3 to 1 mg often beats 5 to 10 mg.
  • Combine timing signal (melatonin) with relaxation (magnesium, glycine, theanine) for full effect.
  • Avoid stacking with alcohol or sedative medications.

What this category covers

Sleep supplements split into two categories. Timing signals (melatonin) tell the body it is biological night. Relaxation aids (magnesium glycinate, glycine, L-theanine, GABA, valerian, passionflower) lower arousal and ease the transition into sleep. The best routines combine one of each, not stack five sedatives.

How timing differs across sleep support

30 to 60 minutes before lights-out in dim light. Melatonin: 0.3 to 1 mg sublingual. Magnesium glycinate: 200 to 400 mg with water. Glycine: 3 g in water. L-theanine: 100 to 400 mg. Valerian: 300 to 600 mg standardized extract. Pick a stack of two or three, not all of them.

Every sleep support we cover

Common pairings

FAQ

Is melatonin habit-forming?

No physical dependence in the literature, but psychological reliance is real, use it for circadian problems rather than nightly forever.

What dose of melatonin?

Start at 0.3 to 1 mg, taken 30 to 60 minutes before bed. Higher doses often produce more side effects without better sleep.

When should I see a doctor about sleep?

Daytime sleepiness despite 7+ hours, loud snoring with witnessed apneas, or chronic insomnia lasting more than a month, supplements are not the right tool.

Explore other categories

Sources

  1. 1. AASM Clinical Practice Guideline on insomnia
  2. 2. Auld et al.: Melatonin meta-analysis
  3. 3. Examine.com: Sleep
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