Sievey was diagnosed with cancer in May 2010, and died at Wythenshawe Hospital on 21 June 2010 at the age of 54 after collapsing at his home in Hale, Greater Manchester. Sievey left a daughter, Asher, and two sons: Stirling and Harry (1992-2017). After it was reported that Sievey had died virtually penniless and was facing a pauper's funeral provided by state grants, a grassroots movement on various social networking websites raised £6,500 in a matter of hours. The appeal closed on Monday 28 June with a final balance of £21,631.55 from 1,632 separate donations.