Insomnia

One of caffeine's most prized properties is its ability to keep people alert. However, consuming too much coffee may make it challenging to get enough restorative sleep. Especially, caffeine consumed later in the day may interfere with sleep because its effects can take several hours to wear off.

According to studies, consuming more caffeine makes it seem like it takes longer to fall asleep. Additionally, especially in the elderly, it can result in less total sleep time. Those who are regarded as "good sleepers" or even those who self-report insomnia don't appear to be much affected by low or moderate doses of coffee when it comes to their ability to sleep. If you underestimate the amount of caffeine you're consuming, you might not be aware that it is keeping you from falling asleep.