DS is 5 months old, was sleeping OK till 16 weeks and since then we seem to have been having a never-ending 4-month sleep regression. I thought it was getting better last week, but we're right back to feeding every hour and a half all night. He doesn't nap in the daytime for longer than 45 minutes at a stretch, so I can't sleep in the day. I'm so tired I do actually think I'm going mad, and I have to go back to work at the end of this month. DH will be SAHD once I go back to work, so if we switch to formula he can do more of the night feeding: at the moment there's nothing he can do so all the nights fall to me.
I feel very sad about this as I'd planned to BF till 6 months and carry on doing morning and evening feeds when I went back to work, but I don't see any alternative to switching to FF: I would mixed feed, but we've never been able to get DS to take a bottle and I don't think we ever will as long as he knows the breast is there. So the question is, which brand of formula do we go for? DS has a slightly sensitive gut, in spite of having been EBF, and I suspect will be prone to constipation.