tldr; Reddit users generally view the Western Mountaineering MegaLite positively, noting its -2C rating and wider fit compared to other WM models.
$565.00 on AmazonScores based on sentiment analysis of topic-related comments
Best praise vs top criticism for Western Mountaineering MegaLite
“Regarding temperature preferences, I’ve discovered that I don’t like using quilts when it’s below 10°C, so I switch to sleeping bags instead. For three-season camping (early spring/late fall), I use the Western Mountaineering Megalite, and for colder conditions down to -15°C, I use a Cumulus Teneqa 700 with an additional 200g of overstuff.”
“Just below freezing (and in only a baselayer) I really need to cinch the bag. Haven’t taken it into colder temperatures because it’s quite clearly the bags limit (to me, without extra clothes). The Megalite is certainly not made for 15-20F. The Alpinlite has the same (roomy) cut and is rated for 20F (Ultralite has same temp rating but much narrower). Next step is the Versalite at 10F (not sure about size of that one. If you pick the right bag for your needs, you really can’t go wrong with WM. They’re all terrific products.”
86 Reddit opinions analyzed • Last updated 4/5/2026