The Exped Ultra 3R sleeping mat is the Perfect sleeping mat for my Exped Orion II tent. It fits exactly and snugly in the tent, the mat does not slip around on the tent floor if pitched on an incline. On the first weekend trip out the mat held pressure over three consecutive nights. The dual chamber construction is perfect,, allows for individual comfort when 2 people are sleeping in the tent. The inlet and outlet valves are a great improvement over those on previous generations of mats, allowing easy inflation / deflation. Very comfortable and great insulation from the ground. Overall a great product.
