Marmot Idlewild 30° Sleeping Bag

The Marmot Idlewild 30° is a semi-rectangular camping bag positioned between a full rectangular bag's roominess and a mummy bag's warmth efficiency. Spirafil Recycled LT synthetic insulation fills a shell rated by the manufacturer to -1°C, worth treating as approximate camp-comfort guidance rather than a lab-tested EN figure. At 1890 g, it is noticeably lighter than the Doublewide two-person version but still built for car camping rather than a backpack. Shoulder and hip widths of 180 cm and 171 cm are generous for a single sleeper, leaving room to shift position or bring a layer inside without the boxed-in feel of a snug mummy cut. A two-way YKK zipper with a draft tube limits drafts at the closure, and an anatomical 3D footbox gives the feet more room than a simple tapered end. Packed size is 48 x 24 cm at roughly 22 liters, and a stuff sack is included. It suits weekend car camping and family trips more than ultralight backpacking.