I am a 5'11" man weighing 175 pounds, and have found that the Ghostbed is great for sleeping comfortably and relieving back pain. With a good (down) pillow, I also don't snore anymore. However, my girlfriend, who is 5'5" and weighs 110 pounds, finds the bed too hard for her. As a result, we bought a twin-sized memory foam topper for her to be comfortable. Now, there is a ledge separating the two of us.
The Ghost bed takes some getting use to. I has to have a strong base. I am sleeping better. Be careful when opening the package. You will need two people to set up a queen size mattress.
The whole process works just as they explain online. I ordered my queen bed and pillows on a Sunday and the bed arrived on Tuesday, the pillows arrived on Friday in a separate shipment. After following their instructions the bed is super comfortable and transfers almost no motion, the packaging mentions some kind of smell associated with the packing process but I barely smelled anything.. The pillows are great too, you just sink right into them. But I'm a side sleeper most of the time so I have to use both stacked up to be comfortable. The mattress keeps you cool, I used to get super hot when I slept but not anymore. I love it. This brand was recommended by a friend and now I'm telling all of my friends about it too.
I travel a lot for work, and this weekend was my first weekend to be gone since we got our new mattress. When I got into my hotel, the first thing that I thought about was missing my ghostbed... Not how much I miss my wife, or what songs I was going to play that night. Nope, it was how much more comfortable my night would be at home in my new bed. Needless to say, my wife and I are both very happy with our new mattress!
I did a ton of research before buying a bed and everything said the GhostBed was great -- firm, cool, comfortable -- except that it has no edge support. But I'm not sitting on my bed composing symphonies or anything like that; I sleep and then get up. If that sounds like you, then this is the bed for you.