Will VÅGSTRANDA Pocket spring mattress, medium firm/white, Queen fit in an Audi Q3 2019?

The Audi Q3 gives you a wide, square boot mouth: 44⅛″ across and 30¾″ tall, so most flat-pack cartons clear the opening with the seats up. Behind them the floor runs 35⅜″, and folding the rear bench stretches that to 65⅜″, a gain of 29⅞″ that turns a school-run boot into a proper load bay. The floor holds 39⅜″ across at its narrowest, so wide boxes sit flat. The catch is the lip: at 29½″ the sill is a high lift, with a 3½″ drop to the floor. Slide heavy boxes in on their edge rather than lowering them straight down.

VÅGSTRANDA ships as one box, and it is a heavy one: 65¾″ × 17¾″ × 17¼″ at 109 lb 6 oz. IKEA rolls and compresses the queen mattress, so instead of a floppy slab you get a short, dense block that two people can carry and one person will regret. The length is friendly; the weight is the problem, and the box gives you no handles. Most hatchbacks take it with the rear seats folded, and a wagon or SUV swallows it without drama. Load it last, on its side, so it slides straight out at home, and keep the wrapping sealed until the bedroom: once it expands, it never rolls back up.