Argh on the swaddling / SIDS risk - anything that makes them sleep more deeply is a SIDS risk - sleeping on their tummy, hungry baby formula, being warm, swaddling - the best way to avoid SIDS is never to let them sleep, which sometimes I think this is Lilla's plan. 
We don't smoke, I'm not drinking whilst BF (yet but by god once she's doing 4-5 hour stints I will be!), she sleeps right next to me in the bednest, I can't let her sleep on her tum yet because of reflux / choking risk so I'm comfy with the very limited risks we are taking - swaddling and a sheepskin. I really don't want to tempt fate but she needs to sleep too.
We too will be moving to a sleeping bag at 8lb 8oz as she's not got an especially strong startle reflex. I've ordered a ergo cocoon 2.5 tog to help with this (its a swaddle that becomes a sleeping bag). I like the idea of a formally tog rated swaddle (its 1 tog on the torso, 2.5 tog on the hips and legs) so I know exactly quite how warm she is / how well to dress her, with blanket swaddling I'm never confident she's not too hot / cold in the night.
She just gave me a 3 hour stretch of sleep! Finally!!!! She's fed and nodded off and just shat in her sleep, argh, noisy indignant nappy change alert!
