SKU: SS23148 Weighs: 912g (excluding bag) Mat Size: Long Wide R-Value: 3.8 Season Rating: 3 Season Mat Type: Airbeds Rab’s first foray into the self inflating mat market is an impressive attempt. It’s a good 3-season mat and very reasonably priced for such a good quality, light mat. Rab says:  If you’re looking f… Exosphere 3.5 Sleeping Mat - Long Wide