We've created a monster!!!

Well as many of you may know Jacob has been not feeling so well. Double ear infection and they are both draining with a fever. And a cold on top of that! constant boogies running out the nose and all over my clothes.
Now when we came home he was fine, slept in his crib no problem. But when he was sick he was not for any reason going to sleep in it or the play pen. So he slept in bed with Michael a few nights when I was sick to. And then with me when Michael was sick. Now he is slowly starting to feel better and will not sleep in the crib or play pen... help We've created a monster!!!
Any tips on how to break this habit (Jena ...help me)
Well since his fever was not going down after 10 days ped did blood work. All was well but he test did show he previously had mono. He does not have it now but he had at some point. I have read this is coming whenadopting from foreign countries.
Well better go make another attempt to place him in crib..