Both of my kids, now 12 and 9, went thru this around the same age. Instead of fighting them all night and keeping us and them up, I just let them come in and sleep on the floor on my side of the bed. I did NOT make it comfortable for them, they would just bring their blanket, pillow and/or stuffed animal. And it was usually early morning, around 3am or later, so it was not for most of the night. Then they just stopped. I think the kids get to an age where they "know" they are alone and just need some reassurance. I was NEVER a co sleeper, I had my kids in their cribs from day one and to this day they have always put themselves to sleep and have been great sleepers. So maybe try that. Let me know if you have any other questions. good luck!!