Seems to be of good quality, design, and construction. These comments are made at one week after purchase, so durability remains to be seen. The mattress is firm and supportive, as we wanted, yet also soft on the top layers to prevent body-part numbness (when sleeping on one's side). For registering, I did have difficulty locating the requested Serial Number -- better that Sealy in its registration instructions provide a photo/image (like so many other companies do) of where to find the Serial Number. There are a confusing host of other numbers dispersed on the mattress tag and "Warranty Post Label on Boot end".

Have not slept on it yet. This mattress is for guests. Maybe overkill for guests. Very thick and soft on top. Feels like the support should be very good. Has a heavy chemical foam smell that we hope disappears soon as our first guests arrive in 2 weeks.

My wife and I both have back trouble and found it difficult to find the correct mattress for comfort. We have only had this mattress for a short time but we both are experiencing the relief we have been looking for. We had a Sealy 30 years ago and should have never switched brands when replaced. Won't make that mistake again.

We've had the mattress for a few days now and we are already sleeping better and no longer waking up with body pain. We like a firm mattress and this mattress has just the right firmness, firm with comfort. We will be buying 2 more of these mattresses for our boys now so they can enjoy a better sleeping experience.

Review: Sealy Hybrid Copper II Firm I sleep both on my stomach and side and this mattress has been very comfortable...supportive enough to be comfortable on my stomach and not wake up with a sore back from cupping but soft enough to be able to sleep on my side as well (with a good pillow to support my head and neck)

We had a sealy mattress for years and really liked it, but it was aging so we left it when we moved to a new city across the country. Once we arrived at our new home we found a local mattress with a soft pillow top and purchased it and then began to have incredible back pain night after night. We hated the mattress and decided to go back to sealy and are so happy we did. We love the stability of the mattress - if she gets up at night I don't get disturbed and vice versa.

After spending thousands on a Stearns & Foster and living in the "body dents" for half of the life of the mattress, Hubby & I decided to go cheaper and replace more often. We looked for something firm and tried the mattress for a month. Hubby loved it, but I require more cushion. We bought a foam topper to soften it for me (since I am a side-sleeper) and it was firm enough for support & the added cushion did the trick. All in all we got both the mattress/box springs for under $800 and are sleeping peacefully with happy backs.

The wife have slept on this king sized firm Sealy Posturepedic mattress for 4 nights and sleep very well. Today I'm attempting to register the mattress to secure the warranty. At register.sealy.com there are questions about the mattress that I can't find the answers to in any of the sales paper work or on the mattress. Specifically: 1) Mattress Line -- ours is a Posturepedic, but, that is not among the choices 2) Mattress Collection -- the choices are Essential, Performance, Premium, but, I have no Idea which 3) Mattress Construction -- Tight Top is on the mattress tag 3) Mattress Feel .. well I know it's Firm. Sealy could make this process a bit easier.

This is a very comfortable mattress. Since it conforms to your body, there is no pressure on your joints when laying on your side. I am not a back sleeper, because it was never comfortable. This mattress is comfortable even when laying on your back. The support is great. There is no motion transfer. Being tall, I like the depth of the mattress and box springs. Unfortunately, sheet sets tend to run small for this mattress.

Mattress is in spare bedroom. It is used by guests, or one of us if the other person has a cold, or needs to retire very early or late. It is by far the most comfortable mattress that we have ever had, and we are in our seventies. We have owned more expensive as well as water beds, and everything in-between. Have had it for several days, and can't get over the level of comfort, and the great nigh's sleep. Feel refreshed in the morning, ready to enjoy another great day. commencing to all family and friends. Best purchase ever!