She opened up in this The Daily Mirror article
I have gone entire nights with almost no sleep,
I tend to survive on four or five hours of sleep a night. I’m aware of what effect this has on my personality too – it definitely makes me much less personable.
According to the article Mischa Barton uses Bonuit® Sleep Aid, a traditional herbal medicinal product used to relieve sleep disturbances due to symptoms of mild anxiety. Available from Holland & Barrett or bonuit.co.uk for £9.99 (30).
Any sleep tips you would offer Mischa?
I'll reach out to her on twitter and tell her about the podcast!