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The Sealy Avery Firm mattress combines a patented AlignSupport two-stage coil spring system with gel-infused foam to deliver consistent, zoned support across the sleep surface. UniCased edge support reinforces the perimeter to reduce roll-off and extend the usable area, while BasePlank technology provides a stable, breathable base layer. ComfortCore zoned support in the centre third targets pressure relief at the hips and lower back, and twice-tempered springs add long-term durability. The cashmere-infused, soft-touch cover incorporates SmarTex heat-wicking fabric and ProShield allergen resistance, endorsed by Allergy UK. Dimensions: W90 x D190 cm.
