I used some CM companions now I'm using Sultericdrums companions. 1. About valuable items sorry, but I don't know. I never put valuable items in my companions inventory only stuff for them. 2. CM companions usually stay where you told them to. Sometimes they wander off, but not too far. 3. They don't conflict with other companions. 4. Unfortunately they don't have horses though I've heard about a mod that allows you to buy horses for your companions or something like that. :) 5. Some companions has that feature like Lucien Lachance by star-mystyk. 6. I never had any issues with that. 7. I think that you can have as many companions as you want. :D I used seven once and I had no problems. And about the sleeping. If you tell your companion to wait and there's a bed nearby they'll go to sleep in that bed. I can't remember if you can tell them to go to bed though, but they sleep. But be careful some companions are cranky. :D