We have been letting our almost 6yo granddaughter sleep in our bed pretty much from the start. I was initially very concerned about this but lately I don't feel like it is a problem. It is inconvenient now and then, but as long as we read a story, say prayers and tuck in, she'll go to sleep and we can stay up for awhile. At some point this will no longer work -- she'll be too big, for one thing -- but at present it does. Also I think I saw something about a study that was done on third-world cultures where it is common for the whole family to sleep together, and they found that there were no detrimental emotional effects on the children and in fact they were better adjusted and more secure. What do you all think?