United Kingdom, Oct. 19 -- Dylan Sprouse has no clue where Barbara Palvin "finds the energy" after giving birth.

The 34-year-old actor, who rose to fame as a child star on the Suite Life of Zack and Cody with twin brother Cole, welcomed baby girl Sylvie into the world six weeks ago, and he has become even "more tired" after a month and a half of fatherhood.

His wife Barbara made her runway return at the Victoria's Secret Fashion Show on Sunday (18.10.26), and he told E! News at the vent: "I don't know where she finds the energy.

"I'm a tired guy all the time, and obviously having a newborn makes you more tired.

"Barbara's just up and in super mom mode, and now she's walking the show. I'm like, 'Where does it come from?'"

Dylan ponder...