I am currently employed at a local pizza shop in my town. The business is small and only requires two people to run it. During the weekdays it can get pretty dead, like theres a two hour waiting period between each costumer. Anyways, me and my pregnant coworker have this system. She sits in the front in case someone walks in, and I'm either with her or in the back doing other things. (Things like cutting meat, folding boxes, ect). I am annoyed with her because she has a habit of falling asleep, its not like we are doing anything that requires our full attention, but it urkes me for some reason. And I try to be understanding, since she's pregnant. I realize that she is going to be more drained. But I can't help getting frustrated. Despite this, I havent said anything to my boss and I dont plan to. AITA?