When I took Hardy to Texas, it felt like we were in the car the whole time. I calculated that we spent almost 50 hours driving over that one week. I didn't expect to do nearly that much traveling, but I have a very good friend who is severely ill, so we ended up making an extra trip to Lubbock and back to see her, and that's 10 hours total. Then we had to visit the grandparents, etc. etc. I felt bad having him in the car that much, but he was a trooper. I put him in his kennel with a blanket over three sides and he slept almost the entire way on every trip. He didn't make a peep, it was wonderful.
I agree with Dorris, we stopped every 4-5 hours, and I have to stop that often anyway, so it was no problem! We didn't stay in a hotel, but I did look up where the rest stops would be. Most of them were really nice with big grassy pet areas where we could both stretch our legs. We did several potty stops at gas stations too, but not all of them have grass and the ones that do are usually covered with cigarette butts and other people's trash. So I like rest stops better, when that's an option.
The one thing I will add is that I usually feed Hardy twice, once in the morning and once in the evening. I gave him less food than usual the morning we left GA, but he still got sick in his crate as soon as I parked at the first rest stop. I think the sudden change in movement upset his tummy. Anyway, after that I cut out his morning meal entirely and just gave him a little extra the night before. He does sleep the whole time, so he didn't seem to mind. You can also get nausea pills from your vet as a precaution, but that didn't even occur to me until it was too late.
Even though we were in the car more than I'd planned, I'm really glad I took him. It made the trip a lot more fun for me to have a companion. He loved meeting my friends and family, and of course they all wanted to meet him after the hundreds of pictures I had forced them to look at!
In my opinion, since you love traveling and she seems to do okay on short trips, she will be happy going with you. And as always... we just want more
!! So it's a win-win-win really!