We bought this pad for our caravan, as we both - had bad back problems (side sleepers) - despite the correct mattress. Our mattress has a Schrägeck. We have therefore opened the zipper, cut the inner workings and closed it again. The excess material can cram under the mattress. Result: We now sleep in the caravan better than at home !!! We will again buy this edition for our son, which is not soft enough his mattress. I can recommend it only.
