Harriet Wran, the daughter of former NSW premier Neville Wran, has left the jail that she says saved her life.

Wran, 28, emerged from Silverwater jail just after 7am on Tuesday and was driven out of the complex in a silver Audi with her mother Jill Hickson Wran and brother Hugo.

Wran spoke briefly to a waiting media pack before leaving, stating that she was still in recovery and asked for her privacy to be respected.

"I thought I'd come over and say hello," she said, with her mother Jill leaning on her shoulder.