Letting baby sleep with blankets

Gina

My twins are 12 months old 10 months adjusted. When did you guys start letting your babies sleep with a light blanket at night? I want to give it to them now but my husband is still nervous about SIDS. I feel we are passed that stage.

The blanket I would give to them to sleep with is a knitted blanket that someone made for us which has tiny little holes in it.