Sleeping Bags by TETON Sports. Details:Typical mummy sleeping bags are lightweight and less bulky than rectangular bags — but they’re also notorious for being too snug. The TETON Sports LEEF Sleeping bags are nearly four inches wider and noticeably longer than standard industry sizing. Our “short” bag is roomier than the industry regular, and our “regular” is more like an industry long. TETON’s LEEF bags provide superior lightweight comfort in three temperature ratings, and the pocket-friendly price will leave wiggle room in your wallet.