T.B.
You say they hate to nap. Are you forcing them to nap or are they initiating the nap? I think if you are forcing them to sleep when they are not tired, then that is the problem. If it's quiet time that you are seeking and hoping that a nap will do the trick, then perhaps you need to try just letting them be alone quiet in their room. I have 3 children and not everyone needs a nap...sometimes just putting them in the crib, playing soft music and closing the door to their room (or not) is enough to foster "quiet time" without the expectations of having to fall asleep. Maybe they don't like to take a nap away from you. Do you have a playpen where you can put them in so at least they know they are close to you? I always put soft music on low and it was enough to coax them to sleep on their own.