Michelle Williams is a single mother and proud! Since the tragic and unexpected death of Heath Ledger in 2008, the Oscar-nominated actress has been the solo parent to their daughter Matilda - a responsibility she has handled very well, but the lack of sleep can be an issue.

Michelle Williams
Williams has been raising her and Ledger's daughter as a single parent since 2008 

"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," Williams said in the April issue of Elle UK when opening up about raising Matilda on her own.

"It's a real luxury to have a moment when I'm not scrambling," she continued. "I feel like most of my life, I'm trying to do two things at once, both to the best of my abilities. So that leaves me feeling pretty exhausted."

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Due to her busy lifestyle, the 34-year-old actress also revealed that she has garnered quite the reputation among her close friends for always being tired.

"I'm the person who falls asleep all the time," she told the magazine. "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."

Williams, who first met Ledger on the set of 'Brokeback Mountain' in 2004, has tried to find the balance between being a mother and having a successful acting career since her former love accidentally overdosed seven years ago. The 'Blue Valentine' actress also spoke to Elle UK about how she chooses her roles.

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"[It's always just been] an instantaneous response that happened while I was reading a script," she said of finding roles. "It's the only thing I ever went off - not advice, not some picture in terms of placement or strategy - but just a feeling that came off of the page and into my heart. It suits me best to work with friends, and to make something that feels really homemade."