I’m pleased to say that the Tempur Pro Plus SmartCool impressed in many areas, but I did have a few small reservations. Tempur Pro Plus SmartCool mattress: What you need to knowAt first glance, the Tempur Pro range is a little confusing. There are three depths of mattress to choose from, each with a slightly different name: 21cm (Pro SmartCool), 25cm (Pro Plus SmartCool) and 30cm (Pro Luxe SmartCool). 4 / 14Like the previous Tempur mattress I reviewed – the Tempur Ease – the Pro Plus SmartCool arrived flat and wrapped in plastic. However, if you love the feel of a Tempur mattress, the Pro Plus SmartCool remains a sensible choice.