Jennifer Aniston battling insomnia

Jennifer Aniston has opened up about her sleeping woes after telling US TV expert Dr. Oz she has been battling insomnia for years.

The former Friends star admits her brain is always active and she struggles to turn it off when it's bed time.

In an interview with the good doctor, the actress says, "I have a hard time sleeping. Sleep is a tough one for me. My brain, the committee in my head, if I wake up at three in the morning I just start having conversations and they won't shut up and then I can't get back to sleep.

"I do have three animals and a human being in the bed, so there are all these distractions."

But she's found a way to combat her beauty sleep problems: "I got an app on my phone that allows you to sort of track your sleep rhythms, like how deep you go. I don't really quite ever get into the deep, deep,