Will VÅGSTRANDA Pocket spring mattress, medium firm/white, Twin fit in a BMW X1 2024?

The X1 gives you a compact SUV boot with a fairly wide mouth, 42⅛″ across and 28⅜″ tall, but a short floor of 35⅜″ with the rear seats up. Fold them and it nearly doubles to 64⅝″, a gain of 29⅛″, which is where this boot earns its keep. It takes medium boxes and multi-package loads well, though the longest flat-packs, tall wardrobe frames and full bed rails, will not clear whether the seats are up or down. The floor narrows to 39¾″ at the back, so load the widest item first. The lip sits 28″ up with only a 1⅛″ drop to the floor, so expect a high lift then a flat slide.

The VÅGSTRANDA Twin arrives roll-packed as a single dense block, 43¾″ × 18¼″ × 17½″, weighing 69 lb 4 oz. The shape is friendly, the weight is not: it is a compressed pocket spring mattress, so all of that mass sits in a stubby bundle with no handles and a wrap that likes to slip. Because its longest edge is 43¾″, most hatchbacks swallow it with a seat folded, and many boots take it outright. Carry it with two people, load it on its long side, and leave the wrapping sealed until it is in the bedroom: once it unrolls, it never goes back.