How well does this mattress support my back and spine?

Honest answer: spinal support is the soft spot, scoring a fair 5.7 out of 10. The 700-coil, 13.75-gauge steel core does the lifting and keeps the hips from dropping, but the very plush Euro-top sets the ceiling. Lighter side sleepers get level alignment from the cradle, while heavier sleepers and dedicated back or stomach sleepers can sink past neutral at the midsection because the thick soft cap yields first. If you need firm spinal lift, choose a firmer bed.