Sleep is critical for a student’s academic success and wellness. Obtaining enough sleep is essential for being your best physically, emotionally, academically, and socially; a lack of sleep affects your immune system, mood, and memory retention. According to the National Sleep Foundation, we need 7-10 hours of sleep each night to perform at our optimal levels. Despite this, sleep is typically the first to get reduced when our schedules become busy. Learn more about healthy sleep habits at the Sleep. Dream. Thrive. health informatin page.