Sleep in Heavenly Pizza is the fourth book in Mindy Quigley's delectable Deep Dish Mystery series, set in a Wisconsin pizzeria.

Pizza chef Delilah O'Leary and her kitty companion, Butterball, get into the holiday spirit as Geneva Bay, Wisconsin hosts the nation's premier snow sculpting championship. The annual event transforms the charming resort town into a wonderland of snow castles, ice rinks, and cozy cups of cocoa.
On the eve of the festival though, a too-good-to-be-true Chrismukkah catering gig brings some frosty tidings and heralds an unexpected visit from Delilah's high-intensity older sister. Suddenly it seems that the holidays may not be the hap-happiest season of all. And when one of the town's snowy sculptures reveals a chilling surprise, murder threatens to put the celebrations—and Delilah's crew—on ice for good.