Kim Kardashian may be a professional shopper, but it seems her husband, rapper Kanye West, and their daughter North can't always keep up. The reality star snapped a photo of the cute pair fast asleep as they took a break from the excursion to nap.

Posting the photo on Instagram, Kim wrote: "So today we went baby shopping with @johnlegend & @chrissyteigen Kanye & North were a little too quiet.

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"We found them passed out in the middle of the store #TheRealLifeofPablo."

The father-daughter duo were sound asleep in baby clothing boutique Bel Bambini, where Kim was helping pregnant Chrissy pick out items.

Later in the day, Kim attended best friend Jonathan Cheban's birthday party wearing a coat emblazoned with her own face and the words 'CHILL' and 'SLAY' painted on the sleeve.