Can tea polyphenols cause insomnia?

Side effects vary from person to person; therefore, no one can guarantee whether a particular medication will cause insomnia. If your insomnia began after starting the medication, it is possible—though not certain—that the drug is contributing to this effect. To help alleviate insomnia and promote sleep, you may drink a cup of warm milk before bedtime. Additionally, maintaining a quiet and comfortable sleeping environment and engaging in regular, moderate physical exercise can also support better sleep.