Thread: Thermarest NeoAir XTherm Sizing - Regular or Large

I am looking at purchasing a Thermarest NeoAir XTherm. I have read that the sides of the matress tend to collapse slightly under pressure so am unsure whether to go with the Regular or Large verson. Under normal circumstances the 'Regular' size will be fine however if the edge collaspe is a big deal my thoughts are to go for the 'Large' model to guarentee a good nights sleep (My sleeping bag is a Macpac Pinnacle which doesnt have down on the bottom of the bag hence my cautios approach). The 'Regular' is lighter by around 140 grms which is a postitive also (Regular @ 430g vs Large @ 570 g). I would be greatful of any comments from those who have and use the XTherm and even the NeoAir XLite on their experiences and size preferences.

Cheers