(Cover) - EN Star Style - Camila Alves has revealed her trick for achieving beautiful wavy locks.

The 29-year-old Brazilian model has naturally curly hair and says her voluminous look is easy-to-achieve and requires zero effort. Even though some beauty experts warn against sleeping with wet hair, Camila says it works for her.

I do one thing that everybody says not to do, but I do it because it works for me, she told People.

Its to wash your hair in the night, before you go to bed. People say its not good, but it works for me because I have curly hair. I can sleep with my hair up and then it dries, so when I wake up its kind of got that nice wave and its not too frizzy.

The stunning star has two kids with partner Matthew McConaughey; son Levi, two, and 15-month-old daughter Vida. She admits that motherhood had an impact on her beauty regime it made it better.

I wasnt a big beauty person until I became a mom, she explained. As a model, other people were always putting [make-up] on me. But as a mom, I realised I want to look good every day and what I have to do with it. (C) Cover Media