Slept on this for three nights on rocky ground and never once felt a stone through it. The pressure mapping really shows—my hips and shoulders got support where I usually sink. Inflating takes a bit of effort, but the comfort is worth it.
Slept on this three nights in a row and my back never complained once — the foam actually feels like it supports where you need it instead of just being puffy. Three inches of padding is no joke either, way comfier than the thin pad I used for years.