Shape: Mummy-shaped sleeping bags offer the best efficiency because of the tapered fit. But they can feel restrictive, and you may prefer a more rectangular shape. Semi-rectangular options exist ...

[Coleman Sleeping Bag: $39.99 or less. View deal.] Best Semi-Rectangular Sleeping Bag: NEMO Disco 15 Sleeping Bag Recommended for side sleepers, this rectangular NEMO Disco sleeping bag includes ...

Are these among the best sleeping bags out there for three ... and the shape sits in between a narrow mummy and a rectangular sleeping bag, allowing a bit more wiggle room and for the bag to ...