Simba Hybrid Original Mattress

The original Simba Hybrid is the lighter, cheaper sibling of the Pro: five layers with up to 2,500 Aerocoil micro-springs and a medium feel that reviewers describe as among the most comfortable in its class, with good motion isolation and temperature regulation. For side sleepers it is more forgiving than the medium-firm Pro because the surface gives a little more at the shoulder, which is why it suits combination sleepers who move between their side and back. Reviewers do note that lighter builds may still want more cushioning at the shoulder — if that is you, the Emma's AirGrid or the Nectar's memory foam cushion pressure points more directly. Against the Pro you save money and gain a touch more give, but lose the extra layers and springs that heavier side sleepers benefit from.