Background - we already had an ok mattress but was expecting dd in October and as our other mattress was showing signs of wear, springs starting to go, and baby would be sleeping in the bed at times we decided to use our wedding gift vouchers towards a new mattress from John Lewis. By December springs were coming through. I contacted John Lewis and the replaced it beginning of January. New mattress has done the same. :( its not even a full month later. Now it was cheap but I would expect a cheap mattress to last a couple of years. In hindsight we would have done better to keep our old mattress. What are my rights?