Will VÅGSTRANDA Pocket spring mattress, medium firm/white, Queen fit in an Aiways U6 2023?

The U6 boot is a square, straightforward space that loads easily. The opening is 39⅜″ wide by 26¾″ tall, the floor runs 39⅜″ with the seats up and 71¼″ folded, and the narrowest point across is 40⅛″. The useful detail is the sill. It sits 29½″ off the ground with only a ⅜″ drop to the floor, so the floor is effectively level with the lip. Heavy boxes slide straight in without a lift. Long flat cartons suit it once the bench is down. Push loads in from the bumper rather than carrying them over.

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.