All my babies slept on their tummies - my own six plus the twenty or thirty different babies I fostered. That was what we were told to do back in the sixties/seventies. Indeed, I can even remember one enterprising pram company that produced a pram with see through panels in the front corners for babies on their tummies. One of my friends insisted on putting her babies on their sides, despite health visitor after health visitor telling her not to do so.
One foster child came to me when he was just under a year old, having spent those eleven months in a nursery where I was told he had been so very difficult to feed. He was then on solids and we had no problems except he was a little messier than the norm. He was four when I watched him struggling to lick an ice cream that it dawned on me that he was tongue tied. This was then dealt with, under a whiff of anaesthetic. by a surgeon at the local Paediatric ward, involving an over-night stay for him and me.
Breast IS best - BUT it must be what Mum wants. Too often they receive bad, incorrect advice, like telling them to let baby suck longer to get enough milk. Most of the nourishment babes get from breast milk comes very early on, then some babies like to use the breast like a dummy - but this can lead to sore nipples. To build up breast supply, little and often is the answer. Feed for five minutes every two or three hours for a couple of days AND Mum needs something to eat (like sandwich and a drink) about twenty minutes prior to feeding. If baby and she are not happy then turn over to formula.
Must say I managed to feed my twins even when I got a attack bad bout of mastitus in one breast. It was horrible and extremely painful, like someone sticking a red hot needle into that breast if baby tried to feed, but I did manage to express from that breast and, fortunately the other breast was fine. Was put on a course of anti biotics which then resulted in myself getting thrush and both the twins getting oral thrush. I persevered, as I really did want to b.feed them both as long as possible as I had three other very young children and did not feel up to making so many bottles each day. Got through that (about a fortnight), and then totally b.fed both babies until they were nearly a year old.
Obviously, I bottle fed my foster babies, some of whom came to me direct from hospital, as newborns as pre-adoption. They all thrived.
I can remember saying that with my first (b 1969) I was glad he was not a twin as I had him in one arm and the other hand needed to be free for that Dr Spock book!!!!!