G'day Chris,

No, it's not.  We've received lots of positive feedback about this mat, and noise has never been mentioned as an issue.  Because its a self-inflating mat, and filled with foam, it won't be noisy like inflated air-filled mats can be.
Hope that helps.

G'day Fran,

Exped manufactures products in Taiwan, China, Vietnam, and Korea. The SIM Lite 3.8M Sleeping Mat has a 5-year warranty.

G'day Shaul,

The Sim Lite 3.8M Sleeping Mat has an r-value of 3.2 which will keep you warm down to about -5'C so we'd say you'll be ok. If you wanted to be sure that you'll be toasty in the snow the Synmat 7LW might be a good option with an R-value of 4.9 and -17'C.

G'day Bill,

Thanks for getting in touch. At this point in time, we're only ranging the Sim Lite 3.8 in the M model. Unfortunately, we have to order the Expewd mats in bulk quantities about 6 months in advance so we wouldn't be able to get a 3.8LW for you. Sorry Bill :(

G'day Karl,

It sure is mate. You won't have too many worries storing the Exped SIM Lite 3.8 M Sleeping Mat deflated. 

G'day Karl,

When you first get a new Exped SIM Lite 3.8 M Sleeping Mat, we suggest that you leave it with the valve open for a good few hours to expand the foam for the first time. Beyond that, it should only take a few minutes for the foam to expand out to its full potential each time you use it. 

G'day Dave, 

No, you can not machine wash or tumble dry the Exped Sim Lite 3.8 Sleeping Mat. Use mild soap and water only to occasionally wash the mat.