I think it's an important myth to dispel though that swapping to formula helps with sleep - it doesn't - just like some FF babies sleep through early, so do some bf babies...
I think this is an important point, that people shouldn't assume swaping to ff will help bubs to sleep through.

I ff and this was certainly NOT the reason I swapped from bf to ff.

I don't agree though that I get less sleep, in fact I think I get more. DD was more unsettled during the night when bf, although it was when she was newborn and also my DH does a couple of night feeds, usually the weekend so I can sleep through. We also prepare our bottles before going to bed at night, so I only have to heat it up, which happens when I am changing DD, so I don't think it takes that much longer.