Napping Dilemma

We are having issues napping. Alden is sleeping just fine, but he thinks he needs to be in our bed to nap. The problem is, I can't be in the bedroom the entire time he naps, because he naps about 2 to 2 1/2 hours. He fell off the bed a few weeks ago. Not from rolling over. I had my glasses and my Bible sitting on the table by the bed and when he woke up he saw them and wanted to touch them. He crawled over, tried to grab them and fell. I felt horrible. Since then, I have been trying to have him nap in his crib. Which is a struggle. He wakes up and cries. I've been giving in a couple times and putting him in our bed and I will watch TV or a movie while he naps. But, that means I get NOTHING done. He sleeps JUST fine in his bed at night.

I'm not sure what to do.