I have the older version--the POE InsulMat Max Thermo--and have had no problems. However, I sleep inside my tent. I do have a dog (claws), although I insist he stay off my mattress. My 3-year-old grandson has bounced on the mattress with no ill effect. I suspect the thing is tougher than it looks.

Any inflatable pad (this or a Thermarest type) is going to be vulnerable to punctures, so I'm also concerned about anything thorny. If you don't have a tent with floor, a groundsheet might be a good idea. I'd think that policing your sleeping site ahead of time and a piece of plastic or Polycro would do the job.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey