I'm curious. Am I the only person going through this with the DIY latex bedding? It feels awesome and gelatinous without covering. But as soon as I add sheets the latex becomes as stiff as a board. I have a 3" medium layer on top of two 3" extra firm layers. It's driving me crazy!! Is it an issue with the latex not being able to breathe? I spent quite a bit of money so far. And I know the latex is fine because it sleeps wonderfully without any covering. Just trying to make sure this isn't all in my head.