cold milk does not make us sleepy?!
warm milk activates the sleepy pills used by momma cows to quiet their pesky children!
theres a chemical in milk same chemical as in turkey called tryptophan and melotonin. but it only is active when above a certain temperature. which is why u are always sleepy after thanksgiving and after drinking a warm glass of milk
There is a chemical in milk that makes you sleepy once it is activated by heat!
Warm things in general are conforting, cold things kind of "shock" us and wake us up.