Is a 140x200 topper suitable for an adjustable bed base?

The 140x200 topper is only available as a one-piece version, without a split option. On an adjustable bed base, a one-piece topper can't bend along with the movement of the frame, which may cause it to wrinkle or shift over time. If you use an adjustable bed base, it's worth checking whether a different size with a split version suits your setup better.