Sleep
Which supplements, vitamins, foods and habits affect sleep? Every claim graded by the strength of the published research.
- Disrupts sleep — Caffeine (Harm, grade B: Moderate)
- Can disrupt sleep — Coffee (Harm, grade B: Moderate)
- Helps you fall asleep faster — Hot Bath (Benefit, grade B: Moderate)
- Improves sleep efficiency — Hot Bath (Benefit, grade B: Moderate)
- Improves sleep quality — Hot Bath (Benefit, grade B: Moderate)
- Helps you fall asleep and sleep better — L-theanine (Benefit, grade B: Moderate)
- Helps children with autism or other neurodevelopmental disorders fall asleep — Melatonin (Benefit, grade B: Moderate)
- Reduces time to fall asleep — Melatonin (Benefit, grade B: Moderate)
- Helps you sleep better — Music (Benefit, grade B: Moderate)
- Helps you sleep better — Progressive Muscle Relaxation (Benefit, grade B: Moderate)
- A warm bath or shower before bed helps you fall asleep faster — Sleep (Benefit, grade B: Moderate)
- Progressive muscle relaxation helps you sleep better — Sleep (Benefit, grade B: Moderate)
- Helps you sleep — Aromatherapy (Benefit, grade C: Limited)
- Improves sleep quality — Ashwagandha (Benefit, grade C: Limited)
- Helps you sleep — Breathing Exercises (Benefit, grade C: Limited)
- Helps you sleep — CBD (Mixed results, grade C: Limited)
- Helps with insomnia — Chamomile (Mixed results, grade C: Limited)
- Helps you sleep better — Chamomile (Benefit, grade C: Limited)
- Eases thinking problems after sleep loss — Creatine (Benefit, grade C: Limited)
- Eases acute cough in children — Honey (Benefit, grade C: Limited)
- Does not clearly improve sleep in advanced illness — Journaling (No effect, grade C: Limited)
- Improves sleep measured by a device — L-theanine (Mixed results, grade C: Limited)
- Improves sleep — Lion's Mane (Mixed results, grade C: Limited)
- Helps you fall asleep and sleep better — Magnesium (Mixed results, grade C: Limited)
- Helps you sleep better — Meditation (Benefit, grade C: Limited)
- Causes physical dependence or rebound insomnia — Melatonin (No effect, grade C: Limited)
- Eases jet lag symptoms — Melatonin (Benefit, grade C: Limited)
- Helps people stop taking benzodiazepines — Melatonin (No effect, grade C: Limited)
- Improves sleep quality in adults aged 55 and older with insomnia — Melatonin (Benefit, grade C: Limited)
- Shifts circadian rhythm timing — Melatonin (Benefit, grade C: Limited)
- Bright light (often in the morning) helps reset a late body clock — Morning Light (Benefit, grade C: Limited)
- Bright light (often in the morning) helps you sleep better — Morning Light (Benefit, grade C: Limited)
- Bright light (often in the morning) improves sleep in dementia — Morning Light (No effect, grade C: Limited)
- Bright light (often in the morning) makes you less sleepy in the day — Morning Light (Benefit, grade C: Limited)
- Helps you cope with a sleepless night — Napping (Mixed results, grade C: Limited)
- Helps you feel more alert — Napping (Benefit, grade C: Limited)
- Improves sleep quality — Tai Chi (Benefit, grade C: Limited)
- Improves sleep duration and quality — Tart Cherry (Benefit, grade C: Limited)
- Exercise, including walking, may improve sleep — Walking (Mixed results, grade C: Limited)
- Helps people with cancer sleep better — Walking (Benefit, grade C: Limited)
- Helps relieve insomnia symptoms — Walking (Benefit, grade C: Limited)
- More daily activity goes with better sleep — Walking (Benefit, grade C: Limited)
- Walking during pregnancy reduces insomnia — Walking (No effect, grade C: Limited)
- Helps you sleep better — Yoga (Benefit, grade C: Limited)