Kalle

Microlore: She is often exhausted, as she does not sleep well. When she sleeps, she often has nightmares - nothing shocking or unusual or violent, but something that shakes her enough to wake her up and leave her feeling unsafe the rest of the night. Instead, she tries to become too tired to stay awake, and others often find her passed out in some strange places.

This dragon works when she can, helping others sort and organize, load and unload. She often helps merchants stock their wares or librarians shelve their books. She is friendly and hardworking, even when she is in the deep end of exhaustion. She is also willing to go the extra mile any time she can, as it helps her keep her mind off how badly she sometimes feels.
The only downside is that she will occasionally fall asleep while she is completing her task, which is starting to make her sure she should talk to someone about her condition.