Tumbler 50/70 Degree Sleeping Bag - Regular RH Forest Night. When summertime really starts to heat up, the Tumbler 50/70 makes it easy to stay chill. Keep the cotton sheet up so you donât sweat it out on blazing hot nights, or flip to the insulated side when the swelter is gone. Youâll be the coolest one at the campground with the versatility to adjust as the thermometer shifts. |