Perhaps we could call it "day into evening wear?" Sounds better than "dress that looks more like a nightgown."
I bought this super soft knit ages ago on super sale at JoAnns with the thought of a dress for Biscuit. Yesterday she agreed that she would indeed like a dress so I pulled out my trusty Simplicity 4206 (for Dummies) and whipped this up between breakfast and running out the door to a wedding. It's actually a shirt pattern that I cut long to make a dress and I cut it extra long intending to hem. Of course then she decided she LIKED it long. Add 'forced hemming" to the list of things I don't bother arguing about. Right after "wearing clips to keep those bangs out of your eyes."
Biscuit wore her nightgown dress to Aunt Laura's while we were at the wedding, home to bed and then woke up and wore it to school.
She changed out of it only briefly for a breakfast that included an orange popsicle. (add, popsicles for breakfast to the "not worth a fight list.") Anyway, I told her she could wear the dress to school and could have a popsicle with breakfast but if she spilled popsicle on the dress she'd have to change.
"I have a good idea," she tells me. "I'll take this off and put on real jammies for breakfast and then put this back on." And so she did. And her blue jammies are covered in orange goo.