Any suggestion for calming treats that don’t have CBD?

hello, we are planning to go on a 3 hour drive to visit my grandparents. Since I really don’t have anybody that can do cat sitting for me I have decided to take my cats with me. I am a little uneasy about using CBD for my cats. I have honestly never gave them catnip before, so I am kinda scared bout giving them CBD straight. So any suggestions on non-CBD treats? or please feel free to educate me with these things cause I can’t gather coherent answers from Google as well.