Cover is not quite as easy to set up and pull off but you get it back and after washing it is just as good as before. It is a simple foam mattress with no vents or vent holes. The mattress is not very thick / hard, hope nevertheless that no hollows occur when our dwarf asleep soon it, because at the price they should have to endure something. The new smell is minimal and after a few days also aired no longer smell. Although it does not fit one hundred percent in the Roba room bed (about 2 cm too short) is but a great alternative to the original supplied mattress for the exchange bed (just awful, this can not tell mattress you, looks more like a slightly thicker filter for an extractor hood). The mattress Alvi you can buy in any case. If demnachst after regular use something negative result I will write this also naträglich inside.
