The Accreditation Council for Graduate Medical Education (ACGME) duty-hour restrictions are aimed to improve sleep deprivation in medical trainees. However, the current ACGME duty-hour limits, particularly in the absence of effective interventions to improve the sleep hygiene of medical trainees, may be inadequate to achieve this goal. This study demonstrates that medical interns, in compliance with ACGME duty-hour restrictions, are still experiencing acute sleep deprivation and not obtaining adequate recovery sleep when off duty. Despite required educational programs for house staff, such as the SAFER (Sleep Alertness and Fatigue Education for Residents) program developed by the American Academy of Sleep Medicine, education alone is ineffective in improving the sleep hygiene of medical trainees. To prevent the negative consequences of sleep deprivation in residents, the adoption of proven countermeasures to fatigue and the promotion of a culture that facilitates healthy sleep habits is warranted.