An Inverness man was arrested Monday on charges that he sexually assaulted a woman early on April 18, court records showed. The victim, a 24-year-old woman whose name is withheld because of the nature of the case, reported that she was sleeping on her couch about 3:30 a.m. when she awoke to find a man sexually assaulting her, Citrus sheriff's reports showed. The Inverness woman said she first thought the man was her male roommate, the reports showed. The man fled, and the woman called 911. Authorities have charged Robert John Emerson, 22, with burglary of a dwelling, battery and sexual battery involving force not likely to cause serious personal injury, records showed.