Bought 2 of these mattresses for my 2 teenage sons. They came vacuumed packed in a box which really surprised us and honestly worried us a little on delivery. Didn't need to worry they easily pop in to shape left for a little while, although the twanging noise is a little disconcerting at first. Both sons have stated they are really comfortable to lay on and teenage lads spend a lot of time in bed - Ha Ha!