Mine has slept in the tent with me. She is usually pretty good. I point where I want her and she settles in. It has gone perfectly except once when the coyotes were yipping and howling very close by and she was trembling and crazy refusing to settle. Hard to tell if it was fear or excitement.
In bear country she acted really weird on one backpacking trip then refusing to leave the tent in the morning until I went out first. My theory was the she was aware of bears in the area. Maybe one had visited in the night, but she didn't wake me so I kind of doubt it. She had acted weird in camp the evening before as if she was aware of something strange. She took her food out of her bowl and tried to bury it.
In her old age she has suddenly become afraid of thunder. I have not had to deal with that in a tent with her, but I'd definitely need to take some of her anxiety meds along these days.
She has been an awesome companion over the years. She trail ran with me a ton of miles ( I lost count at 10,000 miles). She also ran along with my mountain bike sometimes. She also day hiked many days with me. She tagged along on snowshoe trips and XC ski day trips. I haven't taken her in the canoe. She came along after my previous canoeing days and these days I am concerned that her arthritis might make it a bad idea. She has trouble getting up on slippery surfaces and on a bad day even walking on slippery surfaces. We just started her on some new meds so hopefully that will help. One day in on the meds she seems improved, so maybe there is a chance she will be up to some canoeing. She would love to go along.
Edit:
FWIW, she is a german shepard, rottweiler, korgi mix, but strangely enough looks a lot like a yellow lab. Best dog I've ever owned (or more accurately owned me).