I ordered this in three sizes; twin, queen, and King. All packages arrived in the same manageable box. Foam mattress was carefully packaged in shrink wrap and in a heavy duty plastic bag to avoid accidental cut during box opening. There is plenty of space to open the box with risk of cutting but it was packaged with care. The instructions clearly indicate foam is flammable and that the mattress should be aired out for four to five hours before using. Mattress reached normal size easily and instantly. There actually was no odor on any of the sizes. No issues with sheet depth needing to be special. The twin sheet fit over the extra two inches without a problem. Honestly, the entire family slept deeper and more sound. All beds in the house covered for 200.00 which is significant if you cannot purchase a new mattress. We will see over time how it holds up.