And is there not a whole co-sleeping Topic I've missed somewhere on Talk? Seems like there should be.
Anyway, am expecting DS2 in about 4 weeks (or sooner if he stays breech
) and after barely surviving DS1's first few months, where he slept in a Moses basket next to the bed and was being breastfed every 2 hours, we've decided this one will have to be in bed with us from the outset, though I'm planning on having a basket in the room and trying for flexibility too.
Never really coslept properly with DS - maybe a few hours at the end of the night after he was about 3 months or so, but I never got any sleep! I think that I was too scared to sleep and unconfident of the whole thing. Also, we use a duvet and I was worried about the whole overheating thing.
So I need some confidence to do this 'properly' with the new baby. We bought a larger bed (king) specifically to cosleep in (it's a medium mattress, not too soft). There's a spare bedroom for DH to go to if it all gets a bit crowded or loud
as he has to drive to work and is really worried he'll get tired enough to crash, as he nearly did last time. 
I know the 'rules' - no drink, no drugs, sensible bed coverings, etc - but don't really know the basic stuff - for instance, what do we dress the baby in if he's under the covers? Just a vest? Is a duvet a good idea for him if he's in a vest or is that still too hot? Should he have just a blanket over him and the duvet pushed down? I've been making a version of this which struck me as a good idea - a barrier and a mattress protector (our new mattress is quite posh and I don't particularly want breastmilk/poo getting through to it, though I accept this is probably going to happen sooner or later!) but is having a pillow-like barrier even a good idea?
Plus, we're worried about DS1, who is nearly 3 and reacting to our very recent house move by becoming a terrible sleeper and needing lots of cuddles and reassurances. Half the time he's coming into our bed at some point, or needing us to lie down in our bed next to him to get him to sleep at bedtime (and then being transfered to his room) and I'm concerned that if he keeps this up, there will NOT be enough room (not safe room anyway) for him, DH, me and the baby! I suppose that's what the spare room is for - him and DH having some boy time together at nights! 
I am totally clueless, and seem to be living in a very non-lentilly area where hardly anyone does this as a matter of course. Our local Slingmeet is a bit far off, though I bet I'd get some good advice there too.
Tips? Warnings? Random useful things? 