The 23-year-old 'Sing' musician also admitted to sleeping rough outside London's Buckingham Palace, reported Digital Spy.
Sheeran opened up in his new book A Visual Journey about spending years living rough before making it in the music industry.
"There was an arch outside Buckingham Palace that has a heating duct and I spent a couple of nights there... I didn't have anywhere to live for much of 2008 and the whole of 2009 and 2010, but somehow I made it work," Sheeran said.
"I knew where I could get a bed at a certain time of night and I knew who I could call at any time to get a floor to sleep on. Being sociable helped. Drinking helped."