I noticed a small stain on the crib mattress only after I had removed it from the packaging, and as it is the only cover for the mattress filling itself, the cover cannot be removed to be washed. The baby hasn't arrived yet so I haven't yet tried out the mattress for comfort or the waterproof protector for waterproofness, but I am so pleased that these natural alternatives to foam and PVC are available. I had bought some crib sheets from Beaming Baby but they were too small and the ones from Little Green Sheep were much more roomy and able to fit the crib mattress amply. I had no problems with the ordering or delivery. For a previous order I had to collect the Snuz Pod from a nearby town rather than from my own town which was a hassle, but just one of those things as I was working full time at the time. Collecting from a Royal Mail sorting centre near my house or a Post Office would have been preferable, but I appreciate that these options may not be as cost effective for the company.