It's pretty hot overnight in Sydney! However during winter we layer up on clothing, often sleep in our dressing gowns so that we only have our blankets up to our waists.or sleep with air con on. Baby sleeps with head in line with breasts so she is out of the way of the pillow.

Re: smothering, that's never been a major concern of mine - I'm so accommodating when I sleep I end up awkwardly twisting into all sorts of weird positions that crink my neck and back. We are just transitioning baby into bassinet beside the bed for that reason. I don't know what other people do. Depending on age of baby I've heard to keep them just on mothers side when they are tiny as dads aren't as sensitive to baby's location until they are bigger, not sure how big though.