Good for one night

The mattress comfort lasted one night before the gel pillow top began to flatten and sink in the middle. I tried to sleep on the sides to even it out, but this has not helped. Now after less than a week of sleeping on this mattress, it is as bad as the previous one that I owned for ten years prior. I will never recommend this brand to anyone again, and it just reinforces my previous opinion that foam mattresses, even if just a gel top, are a total scam. I have never slept on a bed made of foam that gave me a good nights rest. And this was no exception. My feather top mattress lasted many years before the middle began to sink. This one lasted a day. How ridiculous is that?