The thing about SIDS advice, in fact the whole of raising a child Eggcellent29 and yelyahyoung is it is not about reducing all risk to zero. It is about managing risk, not eliminating risk.
It's impossible to reduce your risk to zero. There will always be a risk. There are some things you can do to reduce the risk. There are lots of things that many families do knowing that there is a risk involved, but by making an informed decision it is risk they decide, on balance, to take.
Cosleeping is a great example for this. Cosleeping (even safely) carries an increased risk of SIDS. That is why perfect advice is for baby to have its own cot, seperate to you.
But... (!) Cosleeping itself has benefits which need to balance against the risks. The benefits of Cosleeping don't take the risks away, but you can make informed choices to manage the risks in ways/as safe as possible.
Swaddling is another thing. And sling use. These things do carry a risk, like cosleeping. But parents make that choice to use them.
Lots of parents decide, on balance, that they are going to go against SIDS advice. They might do this because they decide the benefits outweigh the risk.
The reason I'm anal (sorry) about correct SIDS advice and research is because what is really important is that you make an informed choice based on the facts. Not a choice based on ignorance of the risks.
To place the cold, hard facts at your door - the risk of SIDS is absolutely tiny. Really, really low chance even with risk factors at play. But the chance is there, it will never be zero. What you must remember is SIDS is about babies dying. I know it's horrible to think about but the/reason this advice is here is to try to ensure your own child doesn't die.
I'll reitterate that the changes are very low. But if your child was to die if SIDS, you need to justify to yourself if the risk you took was worth it.
It is ok to take these risks. They will always be there. But you need to know that if you take a risk you feel ok in your own, personal, justification for that risk.
So yelyahyoung - falling asleep with baby on you is an increased risk of SIDS. And Eggcellent29, your baby sleeping on its side is an increased SIDS risk. Both of you can choose to know there is a risk and still do it because you can justify your reasoning to yourself.
But to do that, you have to know the facts. The Lullaby Trust website is the place to get those facts to allow for an informed decision.