What do bees do at night? Well, they sleep. Sometimes, if you have a lot of (native) flowers in your garden, and there's consequently a lot of bees... you can find them sleeping there. Like this tiny bee, who curled up for a cosy night on the bottom of a bellflower:

Or this bumblebee, who hung underneath a scabiosa flower:

When they sleep, they are certainly much easier to photograph than when they are flitting around!