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What keeps Ivanka Trump up at night

October 15, 2015, 3:29 PM UTC

Work-life balance comes at a cost for real estate development and fashion executive Ivanka Trump: sleep.

“It’s not something I’m proud of, but I get around four to five hours of sleep per night,” Trump said at Fortune‘s Most Powerful Women Summit Wednesday in Washington D.C.

Trump is married to fellow real estate developer Jared Kushner, has two young children and is pregnant with her third. She’s also the CEO of her own fashion brand, Ivanka Trump Collection, and serves as the executive vice president of development and acquisitions at The Trump Organization, the real estate giant founded by her father (and current frontrunner for the Republican nomination for U.S. President), Donald Trump.

Trump is able to manage everything in her life by architecting her schedule around the priorities she sets for herself, she explained. “My husband, my children and my family are my top priority,” she said. That means Trump always schedules her last meeting to end by 5:30 pm. She leaves the office no later than 6 pm and she walks to her home, which is only a few blocks away from her office. She’s with her children for dinner, bath time and books, and puts her kids down by 8 pm.

Then she reserves time to spend with her husband. But she’s back to work by 11 pm, until whenever she can finish her emails, Trump said.

“My sleep suffers the most,” she added. But that’s also why weekends are important, Trump explained. From Friday evening to Saturday night, she prioritizes Friday night family dinner and tries to avoid taking on any work commitments.

Being organized is the key to managing it all, she says.

Trump will perhaps have a new part of her life to organize—campaign life. Trump’s father, Donald, is ramping up his campaign appearances ahead of the elections in 2016 and has said that his daughter will be making appearances at some events.

For more on Trump’s comments on how she feels about her father’s presidential bid, read “Ivanka Trump: It’s complicatedand watch this Fortune video: