Automatic Inflation Sleeping Pad. Lightweight Design at only 588g, Fast inflation within 60 seconds, with a 5.6 R-value, it is air mattress for year-round use. R05 Mummy: Weight (with pump): 20.74oz (588g) Size: 72*21.6inches (183*55cm) R-Value: 6 R05 Regular: Weight (with pump): 27oz (766g) Size: 72*25.6inches (183*65cm) R-Value: 5.6 R05 Regular Large: Weight (with pump): 28.43oz (806g) Size: 77.2*25.6inches (196*65cm) R-Value: 5.6