All of our S.I. mats use the first ever, multi-function single valve designed specifically for self-inflating mats. No more fighting re-inflation as you try to roll up your mat!
Made from lightweight 30D polyester with extrusion laminated TPU, it packs down incredibly small for minimalist adventures. The foam used in our Women’s specific Delta Core-V™ graduated pattern uses a mix of smaller holes and solid foam under core body zones for extra warmth where women often feel the cold most. The 2.9 R-value provides the insulation needed through the shoulder seasons while the memory foam means you don’t have to exert yourself inflating your mat at the end of the day.
Using anthropometric data to reveal how best to cater for a woman’s size and weight distribution, the way they store heat and the way they sleep (on their side, mostly), our women’s specific mats are wider from hip to knee and narrower at the shoulder. A thicker THERMOLITE® layer in our women’s air mats and a unique Delta Core™ profile in our women’s self inflating mats translates to warmer core body zones.
Delta Core-V technology removes up to 20% of the weight and bulk of the polyurethane (PU) foam of a self-inflating mattress, while maintaining comfort and insulation.
Our unique approach uses sophisticated pressure-mapping data to create the blueprint for our distinctive graduated core pattern. Where extra warmth and support is needed for the body contact areas-shoulders, hips and feet-the core holes are smaller. In the less critical areas, we have removed more foam to minimise the weight and packed size. Delta Core-V technology is used in our Ultralight SI and Camp mat SI models.
Ever woken up cold because you slipped off your sleeping mat in the middle of the night? Not any more.
Anti-slip silicone print patterns to help your sleeping bag stick to your mat, and your mat to the tent floor.
We have literally put a new twist on our very successful multi-function valve so it specifically addresses the inherent characteristic of self-inflating mats-that is, the problem of the foam trying to re-inflate as you’re packing up.
We’ve engineered the “one-way” inflation valve to be reversible and used it to prevent the mat from drawing air back in. this allows you to roll the mat up as small as possible without fighting re-inflation as you go. This patent-pending valve design has the same slim profile, faster inflation than traditional screw valves, easy pressure fine-tuning and super-fast deflation rate as our air mattresses and pillow.
Easily secure your Sea to Summit pillow to your Sea to Summit mat for a slip-free sleep.
Designed to keep your pillow exactly where its meant to be—on your sleeping mat—our unique PillowLock™ hook-and-loop fastener patches come standard with all our mats from mid-2019.
ASTM F3340-18 R-values are the industry standard of determining resistance to heat loss for sleeping mats.
Sea to Summit gets their sleeping mats independently tested at the EMPA laboratories in Switzerland. In the test, R-values (resistance to heat flow) are measured by placing a hot plate on one side of a sleeping mat and a cold plate on the other. Electronic sensors then determine how much energy it takes to keep the hot plate at a consistent body heat.
As of 1 January, 2020, we will be using the new industry standard ASTM F3340-18 test to provide R-values for our mats. This new method of testing the insulative properties of sleeping mats will see some changes to our previously published R-values. It’s important to note that where these values change, it doesn’t signify a drop or increase in warmth—it simply means they have been tested using a slightly different scale.
