Buying a mattress online can feel like decoding a foreign language—terms like "hybrid coils," "memory foam density," and "cooling gel layers" get thrown around, leaving shoppers overwhelmed. This guide breaks down the must-know jargon so you can shop smarter, not harder.

Editor’s Note: With more people buying mattresses online, understanding these terms is the difference between landing a great deal or waking up with buyer's remorse. It’s a small but practical toolkit for navigating an industry that loves buzzwords.