Got an early Exped Downmat 9 and it’s not had much use (maybe never actually been camped on/with)
Been stored in spare room in a wardrobe
Tried it yesterday and it’s failed
Pump it up and once aboard it goes down after 10-15 mins
Is it the valve or the mat is punctured ?
My Thermarest is over 25 years and used a lot and stored the same way - still giving sterling service - never leaked or failed
Exped ….are they just fragile ?
Been stored in spare room in a wardrobe
Tried it yesterday and it’s failed
Pump it up and once aboard it goes down after 10-15 mins
Is it the valve or the mat is punctured ?
My Thermarest is over 25 years and used a lot and stored the same way - still giving sterling service - never leaked or failed
Exped ….are they just fragile ?

