The presiding judge, Binta Nyako, gave the order to allow Mr. Kanu attend to his ailing health condition.
As part of his bail conditions, Kanu was ordered never to grant any press interview pending the outcome of his trial.
The court also ordered that he will not be in a gathering of more than 10 persons.
The judge on the matter Justice Binta Nyako said Kanu's bail will be revoked if any of the orders are flouted.
However, the other accused persons were denied bail.
According to the judge, treasonable felony - the charges against them is a serious offence against the state.
This is Mr. Kanu's first bail since the commencement of his trial for alleged treason in 2015.