Therm-a-Rest Boost 650 20F/-6C Regular

Warm sleeping bag with interesting features and comfortable dimensions (even without the volume extension).

I particularly like the semi-rectangular shape - finally enough space to change sleeping position without feeling cramped. At the same time, the sleeping bag keeps you really warm thanks to the option of making it tighter with the central zip. This WarmZip function is more than just a gimmick: you can actually feel a significant increase in temperature when the sleeping bag is set to mummy shape...