Pepti is just a different brand.
I asked for it after extensive googling to find the most palatable one (allegedly). Still took a few days of mixing milks to get him to take it though.
Okay, so 11 wakings and 2 feeds, plus multiple failed transfers.
DP managed to wake for the first 2. I had to wake him for the other 4. And more than once... but he did get up at 7.30 with him without grumbling. Ignores fact I'd woke him 7 times over 20 minutes while O was screeching in the cot.
So we need to do something. But what? Help!!
No point going to GP or HV. Believe me, sleep issues just get laughed at. You're on your own with that one. 
Tonight will be 2 weeks of his worst ever sleep. It will also been 2 weeks since he has been on the CMPI formula. 3 weeks since weaning started.
So which is it? Or is it neither? Is it regression made worse by one of the above?
Fuck me. I'm at a massive loss as to what the fuck to do, if anything.
We've decided to give no solids today, and see what he sleeps like tonight.