The history of the Rab brand begins with their sleeping bags and their range of mountaineering quality sleeping bags are still a core part of the Rab range. The Acsent sleeping bag from Rab is ideal for continual use and a wide range of outdoor stays with varied weights of down fill so you can choose your level of warmth as you would with a TOG rating. While the Acsent is a great choice for beginners the more technical Rab Neutrino and Neutrino Endurance sleeping bags are more suited to expedition level stays at higher altitudes and much colder climates.