Stacey:  Yep, the more that's in the fridge the more cold that's absorbed and the harder the fridge has to work. You'll notice there are temperature settings in your fridge, you’re supposed to turn it cooler (higher number, usually) the more stuff you put in, but it does have limits, and does require air circulation (there is obviously none here). The eggo waffles aren't even in the freezer...