"When I'm at home with no make-up, hair tied up, sweat pants or pyjamas on, with a cup of tea and packet of biscuits that's when I'm happy," Contactmusic quoted Cole as saying.
The former Girls Aloud star, 30, believes the tribulations and successes of her younger years have helped her grow into the person she is today.
"I had a bit of a turbulent 20s - I think it's when you're figuring out who you are, and doing your trial and error. But by the time you hit 30 you know, you feel so comfortable in your own skin. I feel settled now," she said.