Jennifer Hudson is sharing a few motherhood pointers with her “Dreamgirls” co-star, Beyonce, who brought her newborn daughter Blue Ivy Carter home from the hospital this week.

“Girl, get your sleep!” Hudson advised at a “Good Housekeeping” media event. “[Beyonce and I] talked about this when I had my munchkin.”

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That “munchkin” J-Hud is referring to is her 2-year-old son, David, who she says, has grown up right before her eyes.

“It goes so fast. [Beyonce] is going to look up and Blue is going to be six months. Next thing you know, she’s going to be walking,” said Hudson.

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While Hudson may be the one sharing advice now, perhaps Beyonce will be offering mommy-daughter tips to Hudson in a few years. The “Here I Am” singer says she’s excited about having another baby, and really wants to give little David a sister.

“I want a little girl so bad!” said Hudson. “But not right now. Give it about three more years.”