My boulevard is installed at a proper angle for my dd but she still gets head slump in it. My friend has a seat with head wings for her 6 month old and it was installed pretty reclined at almost 45 degrees and he gets head slump. I have my radian installed at the same angle as my boulevard and neither of my kids gets head slump in the radian. Is it a problem for an older kid to head to slump fowaard when sleeping if it is installed at a good angle? It has got to go behind the driver soon so it needs to be installed around 30 degrees or a little over. I eventually might want to get a cmplete air but I wondering if I would have the slumping problem since it has wings.