Do cheap Amazon hybrid mattresses hold up over time?

This is where reviewer consensus splits hardest. Verified-purchase buyers and budget-focused YouTube reviewers often rate sub-$400 hybrids highly in the first few months, while independent testing labs and r/Mattress veterans repeatedly flag the same long-term issues: foam softening at 6–12 months, edge collapse, and warranty processes that are difficult to navigate. If you need a 7–10 year mattress, paying up for a name-brand hybrid is usually the better value; if you need a guest room or short-term bed, the budget options can be defensible.