The SEA TO SUMMIT Ether Light XR mattress has been designed specifically for side sleepers, thanks to the extra thickness (10 cm) allowing your hip to sink into the mattress without touching the ground. An evolution of the XT, the Ether Light XR is lighter and more compact while displaying a significantly increased R-value (4.1) thanks to its Thermal Core insulation. It is thus equipped with a layer of reflective film suspended between the mattress's point welds. This film reflects radiant heat back towards the sleeper and minimizes air movement inside the mattress, thus ensuring effective insulation. The integrated Airstream pump and high-flow Xpress valve provide ultra-fast, ultra-easy inflation and deflation It is offered here in a Small version with a length of 168 cm .
The SEA TO SUMMIT Ether Light XR mattress has been designed specifically for side sleepers, thanks to the extra thickness (10 cm) allowing your hip to sink into the mattress without touching the ground. An evolution of the XT, the Ether Light XR is lighter and more compact while displaying a significantly increased R-value (4.1) thanks to its Thermal Core insulation. It is thus equipped with a layer of reflective film suspended between the mattress's point welds. This film reflects radiant heat back towards the sleeper and minimizes air movement inside the mattress, thus ensuring effective insulation. The integrated Airstream pump and high-flow Xpress valve provide ultra-fast, ultra-easy inflation and deflation It is offered here in a Small version with a length of 168 cm .
The SEA TO SUMMIT Ether Light XR mattress has been designed specifically for side sleepers, thanks to the extra thickness (10 cm) allowing your hip to sink into the mattress without touching the ground. An evolution of the XT, the Ether Light XR is lighter and more compact while displaying a significantly increased R-value (4.1) thanks to its Thermal Core insulation. It is thus equipped with a layer of reflective film suspended between the mattress's point welds. This film reflects radiant heat back towards the sleeper and minimizes air movement inside the mattress, thus ensuring effective insulation. The integrated Airstream pump and high-flow Xpress valve provide ultra-fast, ultra-easy inflation and deflation It is offered here in a Small version with a length of 168 cm .
The SEA TO SUMMIT Ether Light XR mattress has been designed specifically for side sleepers, thanks to the extra thickness (10 cm) allowing your hip to sink into the mattress without touching the ground. An evolution of the XT, the Ether Light XR is lighter and more compact while displaying a significantly increased R-value (4.1) thanks to its Thermal Core insulation. It is thus equipped with a layer of reflective film suspended between the mattress's point welds. This film reflects radiant heat back towards the sleeper and minimizes air movement inside the mattress, thus ensuring effective insulation. The integrated Airstream pump and high-flow Xpress valve provide ultra-fast, ultra-easy inflation and deflation It is offered here in a Small version with a length of 168 cm .
Last updated at 07/23/2026 11:52:46
Sea to Summit Ether Light XR
Delivery $40.58
Sea To Summit Ether Light Xr Insulated Air Sleeping Mat Dark Grey
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea To Summit Ether Light Xr Insulated Sleeping Mat - Small
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea to Summit Ether Light XR Insulated Air Sleeping Mat Small
Free delivery
Sea to Summit Ether Light XR Insulated ASC Mat - Sleeping mat
Delivery $128.76
Sea To Summit Ether Light XR Insulated Mat - Small
Delivery $29.88
Sea to Summit Ether Light XR Insulated Air Sleeping Mat Small
Delivery between 29–31 July $10.90
Sea to Summit Ether Light XR Insulated Air Sleeping Mat - Small
Free delivery between 27–30 July
Sea to Summit Ether Light XR Insulated ASC Sleeping Mat Small / Grey
Free delivery between Sat – Tue
Sea to Summit Ether Light XR Insulated ASC Sleeping Mat (Small)
Free delivery between 29–31 July
| Variant | |
| size | Small |
Sea to Summit Ether Light XR
Delivery $40.58
Sea To Summit Ether Light Xr Insulated Air Sleeping Mat Dark Grey
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea To Summit Ether Light Xr Insulated Sleeping Mat - Small
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea to Summit Ether Light XR Insulated Air Sleeping Mat Small
Free delivery
Sea to Summit Ether Light XR Insulated ASC Mat - Sleeping mat
Delivery $128.76
| Variant | |
| size | Small |
