Reply from our Silentnight Expert:
No mattress is completey colourfast. We, therfore, recommend that you use a good quality mattress cover, which will protect it from comng into contact with body moisture or other liquid. Look for a protector with hypoallergenic / anti-bacterial properties. Do not use detergents or chemical cleaners. Using detergents or chemical cleaners on your mattress is likely to damage the fabric and stitching.