Can TSH help with sleep?

TSH (thyroid-stimulating hormone) regulates thyroid function, which influences metabolism and sleep. Abnormal TSH levels—high in hypothyroidism, low in hyperthyroidism—can disrupt sleep. Optimizing thyroid function may improve sleep quality, but TSH itself is not a sleep aid. Consumer tests like MyBody-X measure TSH as a biomarker, not a treatment. Evidence is human-observational (moderate). Caution: TSH varies diurnally and with stress; self-diagnosis or self-medication with thyroid hormones is dangerous. For sleep issues, consult a doctor for comprehensive evaluation including thyroid, but also stress, sleep hygiene, and nutrient status.