I don't think it's a good idea to make it a habit, but there are always those times when it may seem like it's the best thing to do. When my kids were babies they would once in awhile sleep with us. I think it is important that it doesn't become a habit because it is too easy for a couple who are totally in love with their child to forget to be in love with eachother. The love the parents have for eachother is important and needs to be nurtured as well...it is important for the kids to see that as they grow up.