Comfort Light Insulated Mattress – Large
- 1 in stock
- Backordered, shipping soon

The measurements presented are for guidance only.
How to choose the right size
User Height: Measure your full height, barefoot, in an upright position.
Usage: Choose the snuggest possible size to optimize comfort, insulation, and weight.
Sleeping Bag Sizes
| Size | Recommended User Height | Internal Bag Length |
|---|---|---|
| Short | Up to 170 cm | 185 cm |
| Regular | Up to 183 cm | 198 cm |
| Long | Up to 198 cm | 213 cm |
Sleeping Mat Dimensions
| Size | Length | Width |
|---|---|---|
| Short | 168 cm | 55 cm |
| Regular | 183 cm | 55 cm |
| Large | 198 cm | 64 cm |
| Rectangular Regular | 183 cm | 64 cm |
| Rectangular Large | 198 cm | 64 cm |
Sleeping Pads
| Size | Length (cm) | Width (cm) |
|---|---|---|
| Short | 168 | 55 |
| Regular | 183 | 55 |
| Large | 198 | 64 |
| Rectangular Regular | 183 | 64 |
| Rectangular Large | 198 | 64 |
Sleeping Pad Thicknesses
| Range | Thickness (cm) | Comfort | Recommended Use |
|---|---|---|---|
| Ultralight | 5 | Minimal | Ultralight, fastpacking, fast hiking |
| Camp / Lightweight | 5 – 7.5 | Good | Hiking, trekking |
| Ether Light | 10 | Very High | Camping, comfortable trek, side sleepers |
| Comfort Plus | 6.3 (double layer) | High + Safety | Camping, expeditions, air redundancy |
| Comfort Deluxe | 10 | Maximum | Camping, van life, comfort prioritized |
| Self-Inflating | 3.8 – 7.5 | Variable | Camping, versatile use |
All prices are displayed including taxes.
The amount shown is the final price you pay at checkout (shipping fees may apply).
Free shipping on all orders of $200 or more, in Canada and the United States.
Orders ship within 48 hours.
Enjoy 14-day returns after delivery.
Items must be new, unworn, and with original tags attached.
All prices are displayed including taxes.
The amount shown is the final price you pay at checkout (shipping fees may apply).
Free shipping on all orders of $200 or more, in Canada and the United States.
Orders ship within 48 hours.
Enjoy 14-day returns after delivery.
Items must be new, unworn, and with original tags attached.
All prices are displayed including taxes.
The amount shown is the final price you pay at checkout (shipping fees may apply).
Free shipping on all orders of $200 or more, in Canada and the United States.
Orders ship within 48 hours.
Enjoy 14-day returns after delivery.
Items must be new, unworn, and with original tags attached.
Why this price?
- Samples and overstock from major brands
- New products
- Limited quantities – no restock
The Sea to Summit Comfort Light Insulated Large sleeping mat combines comfort, warmth, and lightness for camping and trekking. Its Air Sprung Cell™ technology with hybrid cells offers stability and support throughout the night. Lightweight and compact, it ensures restful sleep even on demanding terrains.
Key features
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R-Value 3.7, sufficient for all but the coldest grounds
-
Exkin Platinum® insulation to reflect body heat and Thermolite® to limit convective heat loss
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Hybrid Air Sprung Cells: double layer in the torso for more warmth and support, single layer at the extremities to reduce weight
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Easy inflation, deflation, and adjustment thanks to the multi-function valve and integrated Airstream Pump stuff sack
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Quiet, durable, and reliable 30D/40D fabric thanks to Sea to Summit lamination technology
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Anti-microbial treatment to prevent the growth of internal mold
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Included: PillowLock™ system, stuff sack/pump, repair kit with six self-adhesive patches and spare valve
- Thickness: 6.3cm/2.5in
Materials
-
Face and insulation: TPU with anti-microbial treatment
-
Insulation: Thermolite® and Exkin® Platinum®
Highlights
✔️ Superior comfort thanks to hybrid Air Sprung Cell™
✔️ Efficient thermal insulation with Exkin Platinum® and Thermolite®
✔️ Quick inflation and deflation with multi-function valve and Airstream Pump
✔️ Durable and quiet thanks to 30D/40D fabric and liquid lamination
✔️ Hygienic thanks to anti-microbial treatment
✔️ Perfect attachment for Sea to Summit pillows with PillowLock™ system
✔️ Complete kit included for outdoor repair and easy use