Brain teaser time! From a panda bear hanging out with some snowmen to a heart hiding amidst a gaggle of snails, we’ve challenged you to scrutinize a handful of drawings over the years in order to find a hidden object. Why is it so difficult for some people? Because while we’re attuned to recognize when something new or unusual appears in our field of vision, we’re only really good at doing that when the differences are very big. Which is what makes this new challenge—courtesy of UK parenting site Channel Mum—such a difficult one: Can you spot the one sleeping baby in this collage of wide-awake tots? Your time starts now …

Give up? Come on, give it one more try.

Okay, you really give up? Head on over to The Sun, if you want to see the answer.