we have a patch of chives in our herb garden which the bees really seem to love and it's usually covered with a few different types of bees at a time.
i'm not sure if the chive pollen makes them sleepy or they just feel safe surrounded by the flowers but they seem to sleep here too. at least i think that's what they're doing, they seem fine and do fly off after a while but they sit with their wings folded for ages.
this one sat and posed for ages as i took photos. they're really gorgeous little things close up, he/she looked really fuzzy and temptingly strokeable (although i did resist the urge!)