The mattress quality is clearly excellent - 12 inches of well-layered foam good edge support cool sleeping surface. My note is the medium firm reads closer to firm than medium to me personally. Side sleepers coming from a plush background may need a few weeks to adjust. The construction quality is not in question just the feel calibration relative to my expectation.

I researched copper-infused foam before buying. Copper's antimicrobial properties are well documented and having them built into the mattress surface is a genuine hygiene benefit over time. The mattress also sleeps cooler than any foam I've tried. South Bay made a smart material choice that benefits both temperature and cleanliness.

Not too hard not too soft. The medium firm on this mattress is textbook - supportive enough to keep my spine aligned plush enough to relieve pressure points. I've been chasing this exact feel for years across multiple mattress purchases. South Bay landed it precisely.

Orthopedic specialist recommended medium firm for my lumbar issues. The Copper Gel Infused mattress delivers exactly what she prescribed. Three weeks in the morning back pain dropped significantly and at six weeks it was essentially gone. The copper gel cooling is a bonus - I sleep through without overheating for the first time in years.

I've been skeptical of cooling claims on mattresses but the copper gel infusion on this one is real. My previous foam mattress would be warm by midnight. This one stays consistently cool throughout the night. I track my sleep temperature and the numbers back it up. Hot sleepers who need medium firm support - this is the one.