Michelle Williams has admitted being a single mother has left her feeling ''exhausted'' all the time.

The 34-year-old actress has to raise her eight-year-old daughter Matilda on her own after her ex-boyfriend Heath Ledger died in 2008 and she is finding it difficult juggling everything by herself.

Speaking in the April issue of ELLE UK magazine, she said: ''I feel like I'm so good at raising a kid when I'm not working. I don't forget anything. I've got everything covered. It's a real luxury to have a moment when I'm not scrambling. I feel like most of my life, I'm trying to do two things at once, both to the best of my abilities.''

The blonde beauty's demanding career and life as a mother has meant her social life has taken a back seat for a while.

She explained: ''I'm the person who falls asleep all the time. You invite me over for dinner or to a party, and there's a whole scrapbook of pictures of me napping. I've even been given a nickname because of my snoring.''

Meanwhile, Michelle tries to stay away from social networking sites but likes to read her poetry app on her phone every day.

She said: ''I love poetry because it's like a shot, like an attack, like a dose. And for a person who doesn't have very much free time, it does its work very quickly.

''So I read poems on my phone when I wake up in the morning. It opens you up for the rest of the day, and suddenly your life becomes a little more observed. And when it becomes more observed, it can't help but start to become more beautiful.''