By being aware of the symptoms, predisposing factors, and comorbidities associated with obstructive sleep apnea (OSA), primary care providers can play a vital role in screening their patients for OSA. The most common symptom of OSA is excessive sleepiness. Medical providers can assess degree of sleepiness very effectively and easily by administering the Epworth Sleepiness Scale (ESS). Currently, polysomnography is required to confirm a diagnosis of OSA. Follow-up in the primary care setting is essential to ensure appropriate continued therapy. ESS is the preferred method to assess degree of residual sleepiness after treatment initiation.