Orient's 3-1 loss to Hartlepool over the weekend extended a run of poor form that has seen the League Two side win just twice in 12 games, after winning their opening five games to the season.
Becchetti's side are seventh in England's fourth tier, but the Italian has had enough and checked his team into the £100-a-night Marriott Hotel in Waltham Abbey immediately after Sunday's defeat, reports Sam Cunningham of the Daily Mail.
While the squad of 18 and six staff are at least allowed to visit their families, they have to eat, sleep and live at the hotel, as well as travel to and from training with their team-mates.