Bangkok to Chiang Rai with Baby in the car

Drove Bangkok to Chiang Rai last week with Baby. 14 hours with breaks. My husband drive first half, me second half. Baby is 1 year 8 months, Shih Tzu, first long trip. She sit in the back on her blanket and look out of window the whole time. Sometimes she sleep, sometimes she bark at the motorbike. We stop at a rest area near Nakhon Sawan for toilet and water. She go wee on the grass and everybody clapping. Hotel had dog room, good. Coming back next month.