Slatted frame Balance 700 FLEX adjustable 90x190 glides effortlessly between traditional craftsmanship and modern ergonomics, gently cushions every night-time movement thanks to 42 multi-layer glued springwood slats, supports the shoulder comfort zone and centre belt individually tailored to your sleeping style ballet, while the head and foot sections are elegantly brought into the resting position by hand.Multi-layer glued birch spring slats for long-lasting elasticityDuo caps support 42 slats quietly and internallySeven comfort zones with variable firmness in the centre zoneStepless manual adjustment of head and foot sectionsCentre belt keeps the lying surface evenly under tension