The Rab Ultrasphere 4.5 sleeping mat seems to have a winning combination of warmth and packability, but it has its flaws, too ...

To be considered a 3-season camping mat, the R-value of a sleeping pad should be at least 2.5, so the Alpkit Whisper sneaks in at the lower end of the scale in terms of providing warmth.

A comfortable and reliable sleeping mat equals a good night’s sleep. We doss down with the new Airlite Pump 6.5 to see if it ...

The Kelty Cosmic SI Mummy Sleeping Mat offers good warmth and ... more of a mixed bag - the ASTM R-Value of 3.9 is perfectly respectable for three season use, and indeed could at a bit of a ...