Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy it and your on you own!

I purchased this bed about 6 months ago and have used it a couple of times. The last time I used the matress it started poping from with in. After you hear a pop you see a big knot appear in the middle of the bed. Now I have several big bumps in the middle of the bed which is no longer usable! I tried to return it but there is only 90 day return policy. I called the company and they told me they can do nothing for me. The is no warranty on this product. I feel used after paying $135.00 for about 7 uses of this bed! I guess I could look at the bright side my company had a place to stay when they visited. Next time I will be aware to look for warranty. Buyer beware : (