Blanket Window 

A window that is covered by a blanket

Take off the blanket window, its dark in here.

Blanket Window by TheRandomWordMan May 25, 2021

window blankets 

It's a word to define curtains

"I see you have your windows boarded up,"
"Yeah I have the glass just not the window blankets."
"You mean curtains.?"
"Yeah those."

window blankets by Stacey fern July 14, 2014