Jennifer Aniston suffers from insomnia

msn.com:

Gallery: ‘I was living in London. I wanted to try EVERY PUB’. These stars REFUSED to lose weight for an acting role (BANG Showbiz)The former 'Friends' star went on to explain that the more she "worries" about falling asleep, the harder it is to do so and revealed that in the past she would even sleepwalk.

She told PEOPLE: "And the more I worry about it, the harder it is to fall asleep. I have been known to [sleepwalk]. I've been woken up by house alarms going off that I've set off.

And I don't think I do that anymore — that was when I was super sleep deprived. The body is saying, 'Now don't go out and set the alarm off again, okay?'" Jennifer - who is thought to have sought medical help for her sleeping problems - explained that it became hard to keep herself healthy because a lack of sleep prevented her from being able to exercise.