SKU: SS22859 Weighs: 523g R-Value: 4.8 Season Rating: Winter Mat Size: Regular Wide Mat Type: Airbeds If you definitely need a full 4 season mat but you want one thats a bit wider than the standard mat then at just 523grams this could be a good option. Exped's Ultra 5R Sleeping Mats are intended for 4 season use and have… Ultra 5R MW Mummy Sleeping Mat