Best Supplements for Improved Sleep Quality
Ranked by research evidence. Compare 22 supplements across 33 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Low evidence10 studies
Across 7 papers in the database, only one direct human trial (crossover, n=17) specifically tested Lactobacillus brevis SBC8803 for sleep quality. That trial reported a small beneficial effect on waking (p=0.047) and a marginally significant improvement in daytime drowsiness (p=0.067). The remaining 6 studies either examined other probiotic strains or were general reviews not specific to SBC8803, so the aggregate evidence for this particular supplement–outcome pair is very limited.
22 supplements
- LowLactobacillus brevis SBC8803Across 7 papers in the database, only one direct human trial (crossover, n=17) specifically tested Lactobacillus brevis SBC8803 for sleep quality. That trial reported a small beneficial effect on waking (p=0.047) and a marginally significant improvement in daytime drowsiness (p=0.067). The remaining 6 studies either examined other probiotic strains or were general reviews not specific to SBC8803, so the aggregate evidence for this particular supplement–outcome pair is very limited.10 beneficial10 studies