BEIJING, June 30 (Xinhuanet) -- Billy Mays, who died Sunday, has likely died of heart attack in his sleep and did not appear to have suffered head trauma in a rough airplane a day before his death, a medical examiner in Florida said Monday.

    Mays' wife Deborah, who found her husband dead at their home in Tampa, Florida, said he spoke of feeling unwell on Saturday evening after experiencing rough landing while traveling in a U.S. Airways flight from Philadelphia.

    Hillsborough County Medical Examiner Vernard Adams said Mays suffered from hypertensive heart disease, and the wall of the left ventricle of Mays' heart and the wall of one of his arteries were enlarged.

    "The heart disease is perfectly consistent with sudden death," Adams said.

    However, an official cause of death will be issued after toxicology and other tests in eight to 10 weeks.

    Mays, 51, became well known for his loud and flamboyant sales pitches. Amongst the products he promoted were OxiClean and Orange Glo. As well appearing on the Home Shopping Network, Mays was recruited in 2009 by the Discovery Channel for the docudrama Pitchmen.

    (Agencies)