How long does Loom & Leaf mattress last? January 17, 2020 16:46 Updated Loom & Leaf premium memory foam mattress is built to last 10-15 years with normal use. Read our full warranty. Related articles Do I need to purchase a foundation with my Loom & Leaf? Is Loom & Leaf good for side sleepers? What if my Loom & Leaf mattress is too soft? Does Loom & Leaf off-gas? What if my Loom & Leaf mattress is too firm?