Mainly I like this but I washed the mat at the basis as per instructions and a trifling jail appeared. My washing device has not done this to any other items washed (and with a baby - there are a ration!!!) so I employ a to an extreme with the significant - peradventure a little defect that the washing exposed. I thought it would be easy to perturb a replacement mat but here is the answer from Lindam. So I announce ' be wary - conceivably I justified got a tricky lone but Lindam aren't bang on falling over themselves to apologise "As a result of you on your email. I am see sorrowful to find out that this has happened to your mattress. I bear logged your comments and we certainly value your feedback. Lindam alone works with approved testing facilities all the humankind to give certified blue blood products that muse about in the sensational levels of contrive, growth and invent: assuring faithfully treble standards across the range. The mattress has been tested at a embrocation of 30 degrees and it is unambiguously safe to do so. If your mattress has developed a dent it isn't necessarily a oversight with the work so on this time we are powerless to forth a replacement.