You could probably synergize those two powerups by changing purr-tection to a shield that generates a one-use charge each time by pressing down for 1.5s.
Oh thats a cool idea! I think for now as a quick hotfix, I am just going to make naptime un-usable while impurrvious is active. I do love this idea though! I think eventually giving the game more depth with things like this would be really fun! Thanks for the feedback! :D