The IONOSPHERE 5.5 REGULAR mattress is an inflatable model manufactured by RAB to meet the needs of mountaineers and mountain explorers. It offers exceptional comfort for restful nights in extreme conditions.

Its performance is optimized by the revolutionary TILT thermo-reflective technology, coupled with StratusTM R air-blocking insulation. You're protected from frost, so you can enjoy a comfortable night's sleep even at very low temperatures. Its R value of 5.5 is a guarantee of quality, and its 8 cm thickness makes you feel like you're on cloud nine.

Its rectangular shape and XXL external compartments ensure optimum body support, so you can stay in the center of the mattress and sleep in your favorite position. The surface also featuresan adherent silicone print that limits sleeping bag slippage. Finally, inflation and deflation are made easy by the discreet two-way valve and the practical, hygienic pump bag.