Will VÅGSTRANDA Pocket spring mattress, medium firm/white, Queen fit in a Kia Sportage 2023?

The Sportage boot is wide and loads dead flat. The opening is 41⅜″ wide × 28¾″ tall, and the floor runs 35⅜″ with the seats up, reaching 66½″ folded, a gain of 31⅛″. At its narrowest the floor still measures 41″, so wide boxes go straight in without angling. The sill is 28⅜″ with a 0″ drop, so the floor sits level with the lip and items slide in without lifting. The opening is a touch low, so watch tall boxes through the gap. It is strong for wide and long loads, fold the seats for the longest flat-packs. Slide items along the flat floor rather than stacking high.

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.