The R rating is 1,8.

With 10-15 breaths or with the Trinordic pump sack.

The R-value tells you the pad’s ability to resist heat loss to the ground. The higher R-values are warmer. Our pad has an R-value of 1,8 so it is best suitable for the warmer season. During the colder season, especially if you are a person who easily gets cold, then you can increase the R-value by adding a cheap roll/foam mat.

It is a about 5cm thick when inflated.

There is a valve for main camping mat and another for the pillow. So yes, you can inflate/deflate them separately.

Unfortunately you can not clip together Trinordics Camping mats.