I'm a side sleeper and my old mattress was causing me lots of back pain and stiffness. In just a week I felt much better and by the end if week 2 pain and stiffness was completely gone!! The only downside is this mattress sleeps a bit hot but to be fair I've never slept on one that didn't sleep hot. This is a great bed and I highly recommend it! Especially to side sleepers that are having a difficult time with stiffness or pain.
I bought this for my teenage son. At first he loved the feel of it, but by bedtime the first night, he was saying he didn't want the pillow because of the 'lavender' aroma therapy. He finds it stinky and unpleasant. I'm allergic to lavender, so I can't use the pillow and neither can my husband since it would be too close to me as I sleep. I told my son he had to suck it up and hope the scent wears-off quickly.
My girlfriend and I wake up ache free. We noticed an immediate difference over our spring mattress and Ghost is well priced compared to similar offerings.