Mattress finder: find the right firmness for you
Your sleep position, body build and temperature preference all affect which mattress suits you best. Answer 3 questions for an instant recommendation.
Why sleep position and body type matter
Side sleepers generally need more cushioning at the shoulders and hips, while back and stomach sleepers usually need firmer support to keep the spine aligned. Body weight changes how deeply you sink into a mattress, and how hot you tend to sleep affects which materials will keep you comfortable through the night. This tool combines those three factors into a simple starting point — not a substitute for trying a mattress in person when possible.
Popular picks
Emma Original Lite Mattress, Medium Firm
A memory foam and pocket-spring mattress with 3-zone ergonomic support — a good fit for side sleepers who need shoulder and hip pressure relief.
See on Amazon →Simba Hybrid Mattress
A hybrid mattress combining foam and pocket springs for firmer, more responsive support — a solid choice for back sleepers and combination sleepers who need more structure.
See on Amazon →ECCOX Zoned Support Memory Foam Mattress
A firmer, high-density memory foam mattress with zoned support that keeps the spine aligned — suited to back and stomach sleepers, or anyone who needs firmer support for back pain.
See on Amazon →As an Amazon Associate, Dozofy earns from qualifying purchases.
Frequently asked questions
Is this recommendation guaranteed to be perfect for me?
No single rule fits everyone — this gives you a solid, evidence-based starting point based on common sleep-position and body-type guidelines, not a personalized medical fitting.
How often should I replace my mattress?
Most mattresses lose support after about 7-10 years, though this varies by material and use. Sagging, lumps, or waking up sore are signs it may be time.
Does mattress firmness affect back pain?
Yes — a mattress that's too soft or too firm for your position and weight can contribute to poor spinal alignment and morning back pain.
Want to go further?
Explore our guides and other calculators.