The nine months leading up to a birth might feel like decades to a pregnant mother, but once that baby’s free, the months seem to fly by. Need proof? These colorful infant bed sheets featuring measuring marks so you can keep tabs on your baby’s sudden growth spurts.

The $33 sheets look like they’re just patterned with bright concentric circles, but upon closer examination you’ll discover each ring has a measurement in both inches and centimeters. Just make sure baby’s head is positioned inside the smallest yellow circle, and every day you’ll be reminded that you probably should be starting a college fund because they’ll be leaving home before you know it. [Donkey Products]


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