With an insulation R-value of 1.2, this lightweight camping mattress is primarily suited to 2/3 season UK camping. Winter camping would likely require a camping mattress with a higher insulation value in order to stave off the cold from freezing ground, or the addition of a foam sleeping pad, but as a standalone 2/ 3 season inflatable mattress, the UltraMat-M provides comfort at great value for money.
