When she woke up, she was nearly run over as she stumbled across a street on the way to her nearby home, where she sat talking into her phone. Amy, 26, took a taxi to Inn 1888 in London's Marylebone after a session with pals that began at 5pm Monday.
During the 16-hour marathon, she visited two other pubs and two restaurants - at one point-kissing model Mischa Barton and at another strolling with comic Russell Brand's dad Ron. She broke off only briefly at 10pm before resuming her tour of Camden, the West End and Chinatown.
"I was told Amy ordered champagne and the group tucked into it before starting on pink cocktails. They were having a great time," the Sun quoted a source as saying.
Amy, by now sporting a new outfit, finally left Chinatown at 9.15am and headed for the Inn, where she first met Reg, 33. There, cabbie Michael Prenpeh asked for his fare, but Amy wandered off and fell asleep at the table. Michael said: "She was totally gone. She'd no idea what she was doing. She said her boyfriend had no respect for her and was blubbing away - I gave her a tissue." An onlooker said: "A car nearly hit her as she walked in the road. It had to brake really hard."