"One study funded by... the world’s largest marketer of kiwi fruit... found that people assigned to eat two kiwis an hour before their bedtime... had improvements in their sleep onset, duration and efficiency...."

"Other studies funded by the cherry industry have found that drinking tart cherry juice can modestly improve sleep in people with insomnia.... In one randomized clinical trial... researchers discovered that eating more saturated fat and less fiber from foods like vegetables, fruits and whole grains led to reductions in slow-wave sleep, which is the deep, restorative kind. In general, clinical trials have also found that carbohydrates have a significant impact on sleep: People tend to fall asleep much faster at night when they consume a high-carbohydrate diet compared to when they consume a high-fat or high-protein diet.... [But] when people eat more sugar and simple carbs — such as white bread, bagels, pastries and pasta — they wake up more frequently throughout the night...."

From "How Foods May Affect Our Sleep/A growing body of research suggests that the foods you eat can affect how well you sleep, and your sleep patterns can affect your dietary choices" (NYT).

There's a lot more in that article, but it mostly made me think that the advice is the usual advice about a healthy diet. There was no discussion of WHEN to eat, which I would think has a lot to do with food and sleep. I'd like to see a study where people ate the same foods but at different times of the day. Many people are experimenting with intermittent eating these days, but the standard choice is to skip breakfast and to eat lunch and dinner. When I do intermittent eating, what I skip is dinner. I think people are afraid of "going to bed on an empty stomach," but I'd like to see testing of the hypothesis that that's exactly what you want to do — that it will improve sleep.

ADDED: I thought this was a new article, because it was pushed at me as I was reading the Times today. I didn't notice that it's actually over a year old until I opened the comments, put them in the order of most-recommended, and read: "I suspect that after Trump leaves office, a good share of the surviving country will sleep better."