Water Resistant - The cover is made of Lotus Advanced fabric developed by Deslee Clama with the application of nanotechnology, and resistant to water - All the 6 sides of mattress are surrounded by high-density foam to maintain its shape overtime - Individual Pocketed Coils minimize vibration transmission - Both sides of the mattress can be used - Protected with anti-dust mite coating and fire retardant treatment - 15-year warranty on spring coils# (Open Coils for slatted bed frames are also available) #Warranty subject to applicable terms & conditions; please refer to “Mattress Warranty Terms and Conditions” from this website for further details.