With a groundbreaking, back-cradling, TEN layers of sleep indulgence, this is our most advanced and luxurious mattress yet. As well as a whole host of other unique Simba features, the Hybrid Luxe boasts double stacked titanium Aerocoil® spring comfort layers at the top, and a high carbon steel Aerocoil spring layer at the base to guarantee maximum support and pressure relief. We’ve also added a breathable, bamboo infused wool layer which offers unrivalled temperature and moisture control.