Like Feedman77 said, blankets work. I've heard that some people put the incubator inside a box that is just a little bigger than the incubator. Doesn't need a lid. Some folks just pile clothing around it. Make sure you do not cover all the ventilation holes though! They need air flow! Good luck!!!!
Thanks for the tip, the blanket thing is totally working! I'm up to 100 degrees now.The only thing I can think of would be to put the incubator in the least drafted room in the house.
Also if you have a blanket wrap the incubator in one to help it retain some heat.
I was starting to get worried that my breeding plans were headed down the drain. Of course I hope to use broodies, but that's not always convenient. Well, it would be if they would cooperate with my schedule!
Someone told me about the box thing, and that sounds like it would work pretty well also. I just hadn't been able to find a box the right size. And my first thought with y'all's suggestion was I better not cover the vent holes... but it's great that you pointed that out because I can see how easy it would be especially for a hatching newb to miss that important factor!