i broke the world for us

I do think that Tasha wouldn't really have her own sense of style. She really focuses on practicality more than anything else. I think most of her off duty wardrobe is just presets that were already in the replicator just adjusted to fit her. Her career is her driving force in life and she doesn't stray too far outside of it.

[Image Description: A digital drawing of Tasha Yar and Deanna Troi from Star Trek The Next Generation. Deanna is wearing a turquoise dress and straddling Tasha while applying her makeup. Tasha is laying flat on her back and wearing a yellow security uniform and looking at Deanna adoringly. They are backed by stars rushing past in the viewport./End Description ]

I like to head cannon that Tasha is a really light sleeper (on account of growing up on Murder Planet) and she doesn’t often sleep in front of other people. That being said, eventually she gets comfortable around Deanna and learns the joys of resting in the arms of a beautiful woman.