Do tannins make you sleepy

Tannins are polyphenolic compounds found in various plants, including tea, wine, and some fruits. They are not known to directly cause sleepiness; instead, they can have astringent properties and may affect the absorption of certain nutrients. Some people may experience digestive discomfort from tannins, which could indirectly influence their energy levels, but there is no scientific evidence to suggest that tannins themselves promote sleepiness.