4 ms·

If you are already sleep-deprived, the risk is that you won't wake up, or wake up and decide to go back to sleep. The caffeine prevents taking too long of a nap

by wrinklz 17y ago

If you are already sleep-deprived, the risk is that you won't wake up, or wake up and decide to go back to sleep. The caffeine prevents taking too long of a nap.