I vote also for conditioner + water mix in a spray bottle, satin cap and Shea Moisture products. We're using Tangle Teazer for our family, a less unconfortable way to get the hair detangled (we're more curly though, my young daughters 3c)... Have you tried any deep conditioning treatments? The might help if the tangles are caused of dryness...

Sent from my HTC Desire S using CurlTalk App
3 a / low porosity / medium texture and density

Two daughters:
3 c / low porosity / fine texture / medium density
4 a / low porosity / fine texture / high density