In our quest for the perfect night's sleep, we recently tried the Sleepmax Extra Firm Queen Size Mattress, and we were intrigued by its promise of deep sleep and pain relief. This 12-inch hybrid mattress is designed for back and side sleepers, and its extra firm support truly stands out. From the moment we unboxed it, we appreciated the cooling features that kept us comfortable throughout the night. Plus, the peace of mind from the 365-night trial and a forever warranty reassured us we made a solid investment. Notably, we were delighted to discover it's fiberglass-free-an important aspect for our family. Overall, the Sleepmax has been a firm yet comfortable companion for our nightly rest, making it a strong contender in the search for the best mattress.