How can I make my recumbent bike comfortable?

I have a recumbent exercise bike that I'm lately using for longer periods of time while I read, etc. Which is great. Except that my rear end is going numb. Is a gel seat cushion going to help? What do I need to do to make this endurable for an hour or more at a time?
posted by gracedissolved on Nov 22, 2012 - 14 answers