Hi Kelly,
My ds is almost 7 months. I was breastf till 5 months (back to work at 6months) so don't know if I can be of great help. He was never sleeping through so I started the DF at 6 months. The 1st night he woke in night I went and gave him water (which i warm and add a drop of gripe water to, which he likes), We had a tense night, more awake than sleep with lots of screming cos he HATED sh/pat, but it worked and the next night he only stired and went back off to sleep, as we had done PU/PD for 2 weeks previously. We have had a few long nights but generally he sleeps til 5.-5.30, I then go and give him water and he settles till 6.30-7. I am still df'ing as my friend says let him get used to sleeping through for a while. He too is on 3 meals of solids a day as well as his milk. Not sure if this is helpful.