Sea to Summit Ultralight Self Inflating Sleeping Mat XS | S | R | L

18 - 25% OFF

$89.00$129.90 inc GST.

The Sea to Summit Ultra light S.I. Sleeping Mat is for ultra-light hikers who can’t go past the tried and true self-inflating foam mats.

SKU: N/A Category:


The Sea to Summit Ultralight Self Inflating Sleeping Mat is light and packable for minimalist fast hikes.

The 2.6 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. The Ultralight Self Inflating Sleeping Mat is the only mat in our S.I. range to come in an extra-small size, it’s easily fits into your ultra-light pack.

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!


  • Delta Core-V Technology
  • Anti-slip print on base of mat, helps hold your mat in place when camping on sloping ground is unavoidable
  • Lightweight 30D polyester with extrusion laminated TPU used on top and base
  • Small vertical Delta Cores in body contact areas (shoulders, hips and feet) keep you warmer
  • Larger vertical Delta Cores in non-body contact areas reduce the mat’s weight and bulk
  • R-value: 2.6
  • Packs down to Ø12.3x33cm
Size/Variation: Extra Small Small Regular Large
Length: 125cm 170cm 183cm 198cm
Width: 51cm 51cm 51cm 64cm
Height/Depth: 2.5cm 2.5cm 2.5cm 2.5cm
Weight: 395g 520g 550g 720g

The 30D polyester is a lightweight woven fabric with an extrusion TPU lamination and is used in our Self Inflating mats. The TPU lamination makes the fabric airtight and allows the PU foam inside our self inflating mats to be bonded to it.


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.

Additional information

Weight N/A
Dimensions N/A

Extra Small, Small, Regular, Large


Sea to Summit







Top Material

30D Polyester with Extrusion Laminated TPU

Base Material

30D Polyester with Extrusion Laminated TPU




Extra Small, Small, Regular, Large


Self Inflating Sleeping Mat


Sea to Summit

Sea to Summit is an innovative design and product development company that engineers a wide range of intuitively simple products that help make time in the outdoors fun, efficient and comfortable. From our West Australian base, Sea to Summit has grown into an award-winning global brand sold in more than 60 countries. Significant growth and international recognition has strengthened our original ethos ‘to equip and inspire’ and it continues to drive our research and development of the best materials and production methods. It inspires new product innovations that keep us at the forefront of bringing lighter, better made, better performing gear to outdoor enthusiasts around the world.


There are no reviews yet.

Be the first to review “Sea to Summit Ultralight Self Inflating Sleeping Mat XS | S | R | L”

Your email address will not be published. Required fields are marked *