"Towards the end it was really tough for them," said Moritz Arnold, who organised the successful record-breaking attempt in the window of a shop in the Austrian capital Vienna.
The feat has been recognised by Guinness World Records, he added.
The five record-breakers, four men and a woman aged 19-24, were chosen from an initial 400 candidates who applied for the ultimate couch-potato experience.
They were allowed a five-minute break per hour for calls of nature, a leg stretch or even a shower.
To help them stay awake the TV-marathoners also had access to an exercise bike as well as coffee and energy drinks.
The former record of 91 hours was set in Toronto, Canada in December 2014.