Mattress GuidesWalmart Mattress Return Policy 2026: 90-Day Rule, Marketplace Sellers & Bed-in-a-Box Rules
Walmart's mattress return policy gives you 90 days for items sold by Walmart - but Marketplace sellers run a 30-day clock with their own rules. Here's how the 2026 policy actually works for opened, bed-in-a-box, and Allswell mattresses.











