I bought my 2 1/2 year old daughter a Graco Nautilus, but now I'm questioning whether it was a good choice. She likes to sleep in the vehicle a lot, and on our last trip her poor head kept falling all over the place. I actually had to hold it up so it wouldn't fall to the front. We took her to the doctor today and she is 39 1/2 inches and 36.5 lbs. So it seems she has lost a little weight since the last time we were there, but still very big for a 2yr old. I want to be able to keep her in a harness as long as possible, but would like something a little more comfortable. I drive a 2007 Nissan XTerra and the seats are extremely slanted. It doesn't seem to bother the seats as much when they are FF as it does RF. Maybe I just need to install the seat differently? Can I put the triangle noodle under the front of it to slant it back more? Thanks for the help.