The Sea to Summit Women's Comfort Light is a self-inflating pad combining a 5 cm open-cell foam core with air, giving it the stable, quiet feel foam-backed pads are known for compared with air-only constructions. Its ASTM F3340-18 R-value of 3.8 sits at the three-to-four-season boundary — good for cool shoulder-season nights, though sustained sub-zero use calls for a warmer pad. The women-specific shaping widens the pad at the hips and adds insulation under the feet.
At 665 g in Regular size (170 × 53 cm), that works out to around 175 g per unit of R-value, a fair trade for the comfort of a foam core over a pure air pad. Anti-slip silicone printing on the 30D polyester top keeps a sleeping bag from sliding, and the multi-function valve speeds up inflation and deflation alike. A stuff sack, repair kit, and PillowLock pillow attachment ship with it, backed by a 10-year warranty.
It suits weekend and multi-day three-season trips where comfort takes priority over shaving grams, more than fast-and-light thru-hiking kit.