Back pain can make sleep frustrating. You lie down hoping to relax, yet your lower back still feels stiff the next morning. Because of this, many people ask a simple question when buying a new bed: between a medium-firm vs firm mattress, which is better for back pain?

If you weigh over 200 pounds, your mattress works harder every night. And if it is not built for that weight, you feel it. Sagging, back pain, rolling into the middle, and waking up hot and uncomfortable. Most mattresses are made for people between 130 and 180 pounds. That is the average. That is why finding the best mattresses for heavy sleepers matters if you want proper support and long-lasting comfort.

Buying a mattress seems simple, but many people make poor choices that leave them uncomfortable, sore, or regretting their purchase. From rushing the decision to ignoring important features, these common mistakes can turn what should be an exciting upgrade into a frustrating experience.