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Choose the support. The feel is calibrated.

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Firm + MiraCoil

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Trusted. Endorsed. Proven Over Time.

SertaAmerica’s number one badgeCASA endorsementWoman’s Choice AwardOfficial mattress badgeSupport First™ — Engineering, Calibrated Feel, Architecture and Methodology

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The Support First™ methodology

Support. Calibrated feel. Size. Your bed.

01 / Support

Choose your support system.

Start with the spring construction at the heart of your bed. Choose your support system, then your preferred feel and size.

Understand Your Support Options

Compare the role each mattress core plays before choosing the feel you prefer.

Swipe or scroll sideways to compare all systems.

How to read the ratings1 out of 5 Entry5 out of 5 Best
Bed Studio support system comparison
Support systemFoam CoreFibre Pad CoreBonnell SpringPower CoilPocket CoilMiraCoil®Power PocketBest of Both™
Recommended by our Support-First philosophyNot recommendedNot recommendedEntryRecommendedRecommendedRecommendedRecommendedOur highest recommendation
Primary purposeComfortComfortBasic supportReinforced supportAdaptive supportStructural supportReinforced + adaptive responseStructural support + adaptive comfort
Ratings
Long-term spinal alignment1 out of 51 out of 52 out of 53 out of 52 out of 55 out of 54 out of 55 out of 5
Pelvic & lumbar support1 out of 51 out of 52 out of 53 out of 52 out of 55 out of 54 out of 55 out of 5
Even weight distribution1 out of 51 out of 52 out of 53 out of 54 out of 55 out of 54 out of 55 out of 5
Support consistency over time1 out of 51 out of 52 out of 53 out of 54 out of 55 out of 54 out of 55 out of 5
Edge-to-edge structural stability1 out of 51 out of 53 out of 54 out of 53 out of 55 out of 54 out of 55 out of 5
Motion isolation2 out of 52 out of 52 out of 53 out of 55 out of 53 out of 54 out of 55 out of 5
Airflow & ventilation1 out of 52 out of 54 out of 55 out of 55 out of 54 out of 55 out of 55 out of 5
Moisture management1 out of 51 out of 54 out of 54 out of 54 out of 54 out of 54 out of 55 out of 5
Durability of the support core1 out of 51 out of 53 out of 54 out of 54 out of 54 out of 54 out of 54 out of 5
Suitable for higher body weights1 out of 51 out of 52 out of 55 out of 53 out of 54 out of 54 out of 55 out of 5
Core feel influence2 out of 51 out of 53 out of 53 out of 54 out of 52 out of 53 out of 54 out of 5
Pressure redistribution2 out of 51 out of 53 out of 53 out of 55 out of 53 out of 54 out of 55 out of 5
Foundation for premium mattresses1 out of 51 out of 52 out of 54 out of 54 out of 54 out of 54 out of 54 out of 5

Ratings reflect Kiran Sales Group’s internal assessments and have not been independently verified.

Why we don’t recommend foam or fibre as a core: they make good comfort layers, but as a support core they compress under pressure, retain heat and fatigue faster than a spring system.

A qualitative comparison of support-system design, assuming comparable mattress quality. Comfort layers, materials and overall construction also influence real-world performance. “Recommended” reflects the Support-First philosophy, not a judgement of any individual mattress.