Thermarest's Ridgerest Classic is a closed cell foam mat with ridges that improves both comfort and insulation.
Thermarest says: The original RidgeRest mattress design returns to take its place as the best value in a closed-cell pad. The RidgRest Classic mattress merges ultra-durable crosslink polyethylene with the timeless performance of our heat-trapping peaks and valleys to bring Therm-a-Rest performance to everyone.
RidgeRest & Z Lite Technology
These Therm-a-Rest innovations boost the effectiveness and comfort of traditional, flat closed-cell foam pads with heat-formed peaks and valleys. The RidgeRest uses a conventional wave pattern and the Z Lite delivers maximum compactness with a nesting waffle pattern. Both increase dead air space in the “valleys” beneath you to boost warmth, while the peaks maintain support and comfort. In addition, all but our RidgeRest Classic mattress combine these benefits with a dual-density construction that combines a denser, more durable foam on the bottom and a softer, more comfortable foam on top for lasting comfort.
Thermarest's Ridgerest is a classic design, take the humble foam mat and carve into it ridges that improve both comfort and insulation for minimal increased weight. Thermarest went on to add reflective material to one side to improve insulation further, but seems to have re-instated this non-reflective version as a relatively low priced option.
Its still not massively comfortable - but it is for a foam mat - the advantages of this material for a sleeping mat is its light and indestructable - you can't get a leak in it so it won't fail. You can also cut it to the size and shape you need, thus avoiding carrying extra weight.
The disadvantage of this type of mat is its size - they are big and bulky, traditionally you would either line your pack with it or strap it to the outside.
- Reviewed by Ultralight Outdoor Gear
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