The silentnight geltex eternity 1850 pillowtop pocket mattress features a premium 1850 spring system teamed with exclusive geltex silentnights temperature regulating gel infused filling layer for amazing comfort and breathability leaving you waking up feeling rested and refreshed geltex delivers optimal body support as the responsive layer offers instant bounce back with 1850 individual springs that respond to your body for pressure relief and an additional pillow top layer the mattress of