Getting my toddler to nap in her crib but she needs her blanket (which we used to spread over her playmat as her bed). At what age can I stop worrying about SIDS?

SIDS is very rare especially in a country like ours that promotes cosleeping. According to what I've read, SIDS is usually a cause of concern between 1 month to 12 months and most of the babies affected by SIDS are in between 2 to 4 months.