Hey moms, I have a dilemma. My son was so excited to finally reach 40 pounds and move into a booster seat in the car with out the 5point harness. We bought a backless one since it was cheaper and easier to move from car to car when needed. Only problem is when he falls asleep in the car there is no where for him to put his head and he ends up slumped forward. We are going to be taking a 9 hour drive soon and need a solution. The seat is too far away from the window- or in this case sliding back door- to just lay a pillow there. We are going to try pulling the adjustable arms on the actual seat up to kinda hold a pillow but not sure how well that will work. Anyone else come across this issue and have a solution? Also tried a neck pillow and that didn't work either. Thanks!