Looking out for our children today has become a huge priority with all the media reports and the fact that most criminal assaults towards children are by someone they know, even a relative. I really feel your husband's fears are quite realistic.

My children are grown but I do have grandchildren and they do have sleepovers but only with children of parents my daughter knows well.

I think your younger one may be a bit young for a sleepover but the older girl could have one at home and in the meantime perhaps you and your husband could work to get to know the parents of your child’s friends. This might go some way to reassure your husband. But I understand his point of view. We can never be too careful about who we leave our children with.