Therm-A-Rest Questar 32 Degree Down Sleeping Bag - The Therm-A-Rest Questar 32 Degree Down Sleeping Bag is the feature-packed down bag you've always wanted. Therm-A-Rest have loaded this bag with the comfort-enhancing hallmarks Therm-a-Rest bags are known for, such as Therm-A-Rest's SynergyLink Connectors, which integrate the bag with a mattress.