Archived from the original (PDF) on 2015-02-26. ↑ The Epworth Sleepiness Scale: What the Epworth Sleepiness Scale is and how to use it ↑ Hardinge FM, Pitson DJ, Stradling JR (1995). "Use of the Epworth Sleepiness Scale to demonstrate response to treatment with nasal continuous positive airways pressure in patients with obstructive sleep apnoea".