Cooper successfully takes naps in his crib at daycare, so we are now trying this at home, too.  Previously he could sleep for an hour if held, but only 20-30 minutes if he was put down in his crib.  We have already been lucky enough to get an hour+ long nap on the weekend, which is fantastic for everyone as Cooper is even happier after getting a good nap.  He loves to play with his binky before going to sleep, and he seems to prefer sucking on the side of it most of all.