You're not losing it on Sunday....lol. Maybe if you had 3" of feathers you would but you have a half inch of liquid in there. It's not a ton, but it's not getting wiped out by a few hours in the upper 30s or even low 40s if that was the case. But in order for it to survive longer, it will definitely need some additional events on top of it....even in cold weather it's going to sublimate slowly.