do butterflies sleep??

A Lepidopterist (someone who studies butterflies and months) on the Mad Scientist Network, Dr. Tim Susman explains that butterflies don't sleep so much as "zone out".
At night, butterflies close thier wings and rest. they're don't completely asleep, but they don't fly around and hunt for food.
Butterflies need the warmth of the sun to keep them active. Butterflies like to rest high up in trees, where they can blend in and stay away form predators. Some even have a sticky odor to protection!!