GM EURO TOP - GM3 - 1 YEAR WARRANTY Excellent starter mattress. Break into a pillow top for an extremely affordable price. 390-13.5 Gauge Springs 1.5in Quilt w Soft Feel Cotton 1in Corrugated Foam 1in 1234 Foam 10in Thickness 1 5 year prorated warranty 1 year full warranty, prorated up to 5 years