Our mattresses ship in boxes that are roughly the size of a mini-fridge. Here are the dimensions of each box: Original (Twin – Full) — 16" x 16" x 42" Original (Queen – Cal-King) — 19" x 19" x 42.5" Original Hybrid (Twin – Full) — 18" x 18" x 42" Original Hybrid (Queen – Cal-King) — 19" x 19" x 42.5" Nova Hybrid (Twin – Full) — 18" x 18" x 42" Nova Hybrid (Queen – Cal-King) — 19" x 19" x 42.5" Wave Hybrid (Twin – Full) — 18" x 18" x 42" Wave Hybrid (Queen – Cal-King) — 20" x 20" x 44"