TAMPA , Florida -LRB- CNN -RRB- -- TV pitchman Billy Mays ' death appeared to be from heart disease , not a bump to the head , according to the Hillsborough County medical examiner . OxiClean pitchman Billy Mays apparently died from heart disease , according to the medical examiner . The final cause of death will not be known until after toxicology results are available , Dr. Vernard Adams said at a Monday news conference . Mays , 50 , was pronounced dead at his home near Tampa Sunday morning , after his wife Deborah found him unresponsive , Tampa police said . The autopsy conducted Monday morning revealed Mays suffered from hypertensive heart disease , Adams said . `` It 's not uncommon to have a sudden death with this kind of disease , '' Adams said . Watch medical examiner discuss Mays ' autopsy '' `` Billy would be overwhelmed to see that his life touched so many people in a positive way , '' Deborah Mays said in a statement Monday . `` While it provides some closure to learn that heart disease took Billy from us , it certainly does n't ease the enormous void that his death has created in our lives , '' she said . Billy Mays had told a friend before he went to sleep Saturday he was not feeling well . `` He said he was groggy , he was n't feeling that great . He wanted to get some sleep , '' Todd Schnitt said . Watch friends remember Billy Mays '' Mays was on a US Airways flight from Philadelphia that had a hard landing Saturday at Tampa International Airport after the front tire of the plane blew out . After the flight , Mays told a Tampa TV station , `` All of a sudden as we hit , you know , it was just the hardest hit , all the things from the ceiling started dropping . It hit me on the head , but I got a hard head . '' Watch Mays talk about hard landing '' Mays , with his booming voice , was famous for fronting products such as OxiClean and Orange Glo in TV commercials . iReport.com : Mays imitator meets the real thing No evidence of exterior or interior head trauma was found during Mays ' autopsy , Adams said . The Discovery Channel -- which airs `` Pitchmen '' co-hosted by Mays -- issued a statement saying , `` It is with incredible sadness that we have to report that Billy Mays died in his sleep last night . Everyone that knows him was aware of his larger-than-life personality , generosity and warmth . Billy was a pioneer in his field and helped many people fulfill their dreams . He will be greatly missed as a loyal and compassionate friend . '' CNN 's John Zarrella , Vivian Kuo and Chuck Johnston contributed to this report .