Drinking coffee six hours before sleep may seriously affect sleep.

Coffee is a controversial drink. It is an indisputable fact that Americans drink a lot of coffee, so it is necessary to know how much coffee and when to drink coffee every day.

It would be unthinkable for Americans to wake up without a cup of coffee in the morning. Coffee energizes people every day, but if you drink it at the wrong time, it may interfere with sleep.

Drinking coffee six hours before sleep may seriously affect sleep, according to a new study published in the medical journal Journal of Clinical Sleep Medicine.

So, if you drink a large cup of coffee before you get off work, you may not be able to sleep at night.

For most people, if you want to sleep well at night, you should stop drinking coffee after 5pm.