The UHP says 53-year-old Gerald Holgreen of Fruit Heights contacted troopers after hearing about the crash on television news reports.
UHP investigators interviewed Holgreen and determined that the mattress involved in the crash did belong to him.
Troopers say Holgreen was issued a citation for failure to secure a load.
46-year-old Royce W. Munns, age from Brigham City was killed late Sunday night when he crashed his motorcycle into a mattress as he traveled south on I-15.
UHP troopers say Munns was not wearing a helmet.