Halibut is packed with two building blocks for better sleep: tryptophan and vitamin B6, which has a mild flavor and meaty texture that appeals to finicky seafood eaters. Other foods high in tryptophan include poultry, beef, soybeans, milk, cheese, yogurt, nuts, and eggs. ("Milk" can mean a lot of different things these days.
Check out this guide to find the best milk for you.)