When weight and bulk matter more than anything, but you don’t want to sacrifice warmth and comfort, the OHM 20F/-6C sleeping bag seems like a no-brainer. With its RDS NikwaxT Hydrophobic DownT 900 fill, this sleeping bag offers one of the best weight/warmth/compressibility ratios on the market. The partitioned structure and zone-based filling distribution all help maximize the sleeping bag’s insulation. For added versatility, the closure extends to the feet, allowing it to be converted into a comforter, or it can be connected to another Ohm sleeping bag to make a two-person sleeping bag. The OHM 20F/-6C by Therm-a-Rest is a perfect sleeping bag for going to the mountains with the least amount of bulk possible while keeping a warm model. Lower comfort T° -6°C.