Drinking warm milk before bed is often considered a soothing bedtime ritual that some people find helpful for promoting sleep. Here's why it might work: 𝐓𝐫𝐲𝐩𝐭𝐨𝐩𝐡𝐚𝐧: Milk contains tryptophan, an amino acid that can increase the production of serotonin in the brain. Serotonin is a neurotransmitter that promotes relaxation and can contribute to sleepiness. 𝐂𝐚𝐥𝐜𝐢𝐮𝐦: Milk is a good source of calcium, which plays a role in the production of melatonin, a hormone that regulates sleep-wa