Calcium carbonate D3 granules is a very commonly used calcium supplement drug in clinic, mainly for the treatment and prevention of osteoporosis. Calcium supplements do not affect sleep in terms of pharmacological mechanism, it only has the effect of calcium supplementation, and does not have any effect on the rhythm of sleep, the length of sleep, and the quality of sleep. Some patients reflect that after taking calcium tablets, they always feel that they can’t sleep soundly or well, which is in fact a kind of psychological disorder with a certain implied effect, and patients should not be entangled and worried about it.