A mattress has one job: keep your spine neutral in the position you actually sleep in. Everything else is comfort preference and marketing.
Firmness: match it to your position
Side sleepers need enough give for the shoulder and hip to sink — medium-soft to medium. Back and stomach sleepers need support that stops the hips from sagging — medium-firm. Heavier bodies shift one notch firmer across the board.
Springs, foam or hybrid
Foam isolates motion and hugs; it also runs warm. Pocket springs breathe and bounce; they transfer a bit more motion. Hybrids stack foam over springs and are the safest default for couples — which is why most of our bestsellers are hybrids.
Height and bases
10–12 inches suits most frames; under 8 inches usually means compromises in layering. Slats should sit no more than 3 inches apart, or foam layers sag through — the quiet killer of warranties.
Use the trial, seriously
A showroom minute tells you nothing; your back needs two to three weeks to adapt. Buy from someone with at least a 30-night trial, sleep on it for 21 nights minimum, then decide.
This article is for information only and is not medical advice. If insomnia lasts longer than three weeks, see a doctor.
Frequently asked questions
How often should I replace a mattress?
Every 7–10 years, or sooner if you wake with aches you don't have elsewhere.
