Final answer:
To ensure quality sleep, caffeine should be avoided 6-8 hours before bedtime. Insufficient sleep can lead to reduced alertness and accumulation of sleep debt. Proper sleep hygiene, including avoiding caffeine, is essential for maintaining health and daily function.
Step-by-step explanation:
The question you've asked pertains to how long before bedtime you should avoid caffeine to ensure quality sleep. It is generally recommended that you avoid caffeine for 6-8 hours before going to sleep (C) to ensure it does not affect your sleep quality. Caffeine can stay in your bloodstream and influence your nervous system for a lengthy period, so avoiding it well ahead of bedtime is key for sleep that is restorative and uninterrupted.
Insufficient sleep can lead to reduced alertness and mental efficiency. Accumulating a sleep debt can have pronounced effects on your overall health and daily function. Therefore, managing sleep hygiene, which includes limiting caffeine intake, is crucial for college students and adults who require 7-9 hours of sleep per night according to the National Sleep Foundation.