I think because of winter and the dry air, everything dries out faster. I cleaned the enclosures 7 hours ago and they are both safely mid 60s and no fog on the glass. I will churn up the bedding each day to air it out so it dries faster.
I've found spotting urine and feces is quite easy with the Mulch. Liquid urates soak into it and turn it darker. I'm able to see where they have pooped and peed and remove it. I can look into Aspen though. (We check for soilage every day to every other day. They tend to come out of their huts and hang out outside when they've gone, so it gives us a heads up.