I have had good experiences with both an Exped Downmat Lite and Thermarest NeoAir X-lite pads. The exped is exponentially quieter than the X-lites though. Only thing I would do were I to get another Exped pad is to get one with synthetic insulation, as with the down I feel obligated to inflate it with the little hand pump they include and it's not the most efficient thing in the world. So far no leaks in either the Exped or Thermarest air pads. I use the Exped for car camping, since it's heavier and bulkier, and the Neoair for backpacking.
Wouldn't really recommend the Neoair for your intended use, but Exped pads may be something to look into. Mine has been plenty durable and quite comfortable. It also does not make the absurd noise that the NeoAir pad does.