Sea To Summit don’t claim to have re-invented the self-inflating camp mat, they’ve just taken the basic self-inflating concept and added their own touch of expertise to create a reliable range of mats, and the Camp Mat SI is the durable all-rounder in the range.
A robust 75D polyester exterior protects a PU foam core that has Delta Core-V™ cut with variable core sizes that provide more warmth in the body contact areas and less where it is not needed to keep weight down.
Also featuring the Sea To Summit multi-functional, high flow rate valve for easy inflation, deflation and fine tuning of the mat pressure. This valve also enables the use of Sea To Summit’s Jetstream or Airstream pumps for easy inflation of your mat.
Love the two way value making it easy to roll back up.
Comfy and light weight.
Was going to purchase the thermarest but this was released and a lot cheaper. Spent 3 nights in approx. 9C overnight temps, comfortable enough. A little slippery at first but seems to have been just because its new. A little hard to put back in the bag but it does go back eventually!
Does this mat come with a repair kit?
The Sea to Summit Self Inflating Sleeping Mat range don't come with repair kits. The best option here is to have a tube of Seam Sealer available here handy to manage any possible leaks.
Thank you for the prompt response!! I also looked at Exped SIM Lite 3.8 (#32185), they don't have R-Value but mentioned comfort temp rating -5C. What is the temp rating for R-Value 4 for this Sea to Summit mat?
We offer the temperature rating as provided to us by Exped to assist with your decision making. The R-Value for the same mat is listed underneath the temperature rating as 3.2.
To expand on your question further, it's actually quite difficult to compare temperature ratings against R-Value ratings as they incorporate different qualities.
When factoring temperature, we recommend that you consider the complete sleep system. For example, someone in a zero-rated sleeping bag won't get all that insulation if they didn’t use a warm sleeping mat. Whereas, if a camper uses a warm sleeping mat but only a thin blanket they are of course going to lose a lot of warmth.
R-Value essentially refers to the resistance against heat loss and is a commonly accepted and tested rating amongst sleeping mat suppliers. The value then allows you to determine your mats capability in any climate. As a very rough guide... an R-Value of 2.5 is typically enough for most conditions in Australia outside of Winter. An R-Value of 5 is widely regarded as a winter mat, and combined with a complete sleep system of similar rating will be ample to take you to the snow.
Under Details & Specs - Pump, it says 'Available Separately". What does this mean? Isn't it a self-inflating mat?
Fantastic question. With all self-inflating sleeping mattresses, they are only able to inflate to a certain pressure as the foam inside allows, but the foam alone never expands to 100% capacity of the mattress. For many, the pressure of the foam expanding offers enough comfort, however, others prefer a firm mattress to sleep on. This is where the pump comes into play to inject further air to firm the mattress. An alternative to the pump is to just blow a few breaths of your own oxygen into the valve and this usually does the same job.
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