Do bees sleep

Bees do sleep. Not necessarily at night. I have observed bees and photographed them sleeping in flowers in my backyard. At first I thought it might be an intoxicating element of the plant and perhaps the bees were all dead. I touched one to check and the bee reacted as a person sleeping. The bee was disturbed by the touch, moved about, re-adjusted his position and seemed to go back to sleep. There were well over a dozen bees and one yellow jacket in this bed of flowers when this observation was made. Fascinating.