The Badenia Trendline Duo 28 is not adjustable, while the head and foot sections of the Duo 28 KF can be adjusted manually. Both models feature 5-level firmness regulation. Unfortunately, the manufacturer does not specify the exact number of adjustment positions. The price difference may arise from the additional function and different purchasing conditions.
No, you can add the product directly to the shopping cart and then the product will be delivered by standard shipping. The other option you are referring to is delivery and commissioning at the place of use. So if you want to bring the product into the home yourself and assemble it, you don't have to select this. :)