BOCA RATON, Fla.--(BUSINESS WIRE)--Watermark Medical, Inc. (Watermark), a privately-held medical products and services company currently servicing the sleep-disordered breathing market, has formed an exclusive partnership with SleepPro Network and the National Football League Players Association (NFLPA) to provide obstructive sleep apnea (OSA) screening, diagnostic evaluation and treatment for current and former NFL players.