Heidi Klum Covers Ladies Home Journal

The 35-year-old mom-of-three divides her days between her kids Leni, 4, Henry, 3, and Johan, 2, and her growing empire.

"Heidi runs her life as the CEO of Heidi Klum, Inc.," her friend and Project Runway costar Michael Kors says. "Everything is done with precision and elegance. And then when you think she has a husband and three children – she is a supersonic, sexy android to be able to accomplish all she does in a normal day."

Heidi, though, is just happy that her schedule is flexible enough to allow her to spend time with her kids every morning and take a day off when she needs it.

"I don't have the hard everyday life that so many working mothers face," she says in the April issue of Ladies Home Journal.

She also has the help of her husband of almost four years, Grammy-winning singer Seal: "I have the best husband in the world," Heidi gushes. "He's very involved."

The couple are devoted parents and enjoy spending as much time as they can with the kids – Heidi says they both drive them to school each morning. The German supermodel had her kids on her mind last year, when she made a point of getting her US citizenship just in time to vote for Barack Obama in the presidential election.

"Having mixed-race children, I feel that when I tell them they can be anything, it now means they really can," Heidi explains.