Alaska MATTRESS is a Spring Air product specialy designed with pocketed spring construction. A pocket spring is a barrel shapped knotless coil that is enclosed individually in non woven thermal bonded fabric pockets. This unique feature allows individual movements of the springs ensuring a " No- Motion" surface that eliminates "Roll-together"and the foam encasement increases the sleeping surface. This pocket spring MATTRESS is designed to give optimum support and COMFORTort.The height of the MATTRESS is 26 cm (+/- 0.75 cm). The warranty is for 10 years oon manufacturing defects.