I bought it 2 years ago and went to Crete for 2 months. Only the first few days were comfortable. Then it started deflating without any visible hole. We had to inflate it every night. The following summer, we had to inflate it constantly and it kept deflating. Within the warranty period, I returned it to the store where I bought it and they told me it was within warranty and they would inform us. After two months, they replied that they tested it, found no problem, and it is out of warranty! I have been waiting for 1.5 months for them to tell me why it deflates and where the hole is. No response! Money wasted!