Rescue Dog barking all night!

We adopted a 4 year old border collie and she came to us on Saturday. So far she seems like a really sweet girl, non reactive with our cats (truly doesn’t care about them at all!) and sweet with our kids. Shes been great in walks and we are starting to see her personality emerge. She seems to haw a bit of separation anxiety, following me wherever I went, crying outside doors she’s not allowed in, but that was even getting better. She’s starting to eat more and during the day is doing great. But nighttime is a different story.

She came crate trained, I don’t know the whole story, but I’m pretty sure she was rehomed. She went to the house of a volunteer with the rescue for a few days before coming here and did well there, went in her crate no problem. We are putting her in our downstairs guest room, in a crate. The first night she started barking right away, and my daughter ended up sleeping there on the pull out couch. Next night same thing and I slept there. 3rd night we tried a smaller crate in my daughter’s room, but she whined and kept her up and eventually I caved and put her in my room in the crate and she continued whining on and off all night. She didn’t need to go potty, she had already been out before bed and got through the night without accidents.

Last night was really rough. We tried a bit more time

In the crate during the day as I had to be out a bit and she did fine. I put her in downstairs and she went in no problem and proceeded to bark non stop for an hour. I thought she would eventually tire herself out, but nope. I went down to check on her and she was panting pretty hard so I let her out and calmed her down and then had her go back in with the door open but shut in the room. She barked for the next 3 hours. I continued to go in to quiet her and she would stop and then keep going. Finally at 2 in the morning I couldn’t take it and let her out upstairs and went to bed. She would whine on and off in the hall and that was our night. I really don’t know what to do! My room is not an option as we want my husband was not too keen on getting the dog and I want to honor that boundary for him. I didn’t want her roaming upstairs because I wanted to give our cats some space without her at night.

I’m at a loss and wondering why I should do tonight! I’m worried that I messed up and caused her anxiety and now she won’t in the crate and will have even more trouble tonight. Help, we need sleep!!