The two/three-season Gelert XL Sleeping Pod Sleeping Bag is unlike most mummy-style sleeping bags in that it offers a much larger volume for one simple reason – we don’t tend to sleep in one position. We wriggle, writhe & curl up throughout the night, hence this special pea-pod shape was created to prevent restriction through the night. This wider-than-the-norm, specially shaped sleeping bag comes supplied with a compression sack, has a soft polyester lining & a mono fibre & polyester mix filling for ample warmth through three seasons.