4-Season Inflatable Sleeping Pad | R-Value 8.5 | Horizon X

Regular price $169.00
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Built for four-season backpacking and demanding cold-weather conditions, Horizon X delivers an R-value of 8.5 at a weight of approximately 580 g, combining dependable thermal performance with trail-ready portability. Its 9 cm-thick air chamber construction cushions uneven ground and distributes body pressure for stable, supportive comfort throughout the night. The 183 × 56 cm sleeping surface provides practical room to move without adding unnecessary bulk.

Inside, six layers of aluminized PET film create multiple reflective thermal barriers, helping reduce radiant heat transfer and overall heat loss to the cold ground. The internal beam structure keeps the reflective PET layers separated and stable, allowing the insulation system to work efficiently while minimizing layer-to-layer contact and the crinkling noise caused by movement. This combination delivers reliable warmth with a quieter, more comfortable sleeping experience.

Made from GRS-certified recycled nylon laminated with TPU, Horizon X balances low weight with abrasion resistance, reliable airtightness, and moisture protection across varied outdoor conditions. Despite its high R-value and generous 9 cm cushioning, the pad packs down to approximately Ø10 × 22 cm for easy carrying on cold-weather and year-round backpacking trips. A pump sack and repair patches are included for convenient setup and dependable use in the field.

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4-Season Inflatable Sleeping Pad | R-Value 8.5 | Horizon X
4-Season Inflatable Sleeping Pad | R-Value 8.5 | Horizon X
$169.00
R-value
8.5
Weight
580g
Thickness
9 cm
ENGINEERED FOR BETTER SLEEP

Warmth Without the Weight—or the Noise.

Built for four-season backpacking and demanding cold-weather conditions.

High-Performance Warmth For Extreme cold-weather Condition
01

High-Performance Warmth For Extreme cold-weather Condition

At 580 g, the pad delivers an R-value of 8.5 for reliable performance in extreme cold-weather conditions.

Multi-Layer PET Insulation
02

Multi-Layer PET Insulation

Six layers of aluminized PET film create multiple reflective thermal barriers, helping reduce radiant heat transfer and overall heat loss to the cold ground for reliable cold-weather insulation.

Quiet Rest Technology
03

Quiet Rest Technology

Internal beam Structure keep the reflective PET layers separated and stable, reducing contact and crinkling noise between the layers as you move.

REAL-WORLD FEEDBACK

Built for Extreme Cold. Trusted on the Trail.

WARMTH-TO-WEIGHT
★★★★★
“Light to carry and warm to sleep on.”
Verified Buyer
TRAIL-TESTED COMFORT
★★★★★
“Supplied a very comfortable slumber.”
Verified Buyer
QUIETER SLEEP
★★★★★
“The best part for me was how quiet it is.”
Verified Buyer
Side sleeper resting comfortably on the WindQuester sleeping pad
COLD-WEATHER TESTED
COLD-WEATHER ENGINEERED

Built for Extreme Cold

High-R-value insulation, multi-layer reflective barriers, and a quieter internal structure work together for dependable warmth in demanding cold-weather conditions.

01

R 8.5 Cold-Weather Warmth

High thermal resistance helps reduce heat loss to the ground for reliable four-season and cold-weather insulation.

02

Six-Layer PET Insulation

Six aluminized PET layers create multiple reflective thermal barriers to help reduce radiant heat transfer and retain warmth through cold nights.

03

Quiet Rest Technology

An internal beam structure keeps the reflective PET layers separated and stable, helping reduce layer contact and crinkling noise as you move.

F3340 Tested
R-VALUE 8.5

Measured thermal resistance.

R-value is measured using the ASTM F3340 test method, providing a standardized measure of a sleeping pad’s resistance to heat loss.

R-Value climate scale from warm weather to extreme cold
THERMAL STRUCTURE Extreme-Cold Thermal System
BODY HEAT
Sleeping pad thermal insulation structure
01
Six-Layer Reflective Insulation Six aluminized PET layers create multiple reflective thermal barriers, helping reduce radiant heat transfer and heat loss to the cold ground.
02
9 cm Insulated Air Chambers Deep air chambers trap insulating air while cushioning uneven ground for stable, supportive cold-weather comfort.
03
Quiet Beam Structure Internal beams keep the reflective PET layers separated and stable, helping reduce layer contact and crinkling noise as you move.
COLD GROUND

FIELD TESTED

Tested in real cold-weather camp and trail conditions to evaluate warmth, comfort, and stability beyond the lab.

WindQuester field testing
WindQuester field testing
WindQuester field testing
WindQuester field testing
WindQuester field testing
MATERIAL ENGINEERED

Lightweight Where It Matters. Tough Where It Counts.

GRS Recycled Fabric
MATERIAL CROSS-SECTION Layered construction
Sleeping pad material cross-section
01

20D Ripstop Nylon — Top

Lightweight square-ripstop nylon balances low weight with dependable tear resistance.

02

TPU Lamination

TPU lamination provides reliable airtightness while maintaining flexibility and moisture protection.

03

40D Reinforced Bottom

Higher-denier diamond-ripstop nylon adds abrasion resistance for repeated ground contact and outdoor use.

Tested by PCT Thru-Hiker Riley Riffel
Horizon X

Tested by PCT Thru-Hiker Riley Riffel

Horizon X – NASA-Inspired Thermal Pad (R 8.5 / 1.29 lbs)

Setup & Practical Details

Feature image

Use the included pump sack for simple setup, or pair Horizon X with a compact electric pump for faster inflation at camp.

Feature image

The two-way valve helps prevent air loss during inflation, lets you fine-tune firmness, and opens fully for fast deflation.

Feature image

9 cm air chambers cushion uneven ground and distribute body pressure for a stable, supportive sleep surface.

Feature image

The beam-supported structure keeps reflective layers separated and stable, helping reduce film contact and crinkling as you move.

Feature image

Included repair patches provide a practical backup for minor punctures, so small mishaps don’t have to end the trip.

Find Your Sleeping Pad

Best For
4-Season Comfort & Side Sleepers
Lightweight 4-Season
R-Value
7.5
6.4
Weight
630g
432g
Thickness
8 cm
10 cm
Width
59 cm
51 cm
Packed Size
φ10 × 27 cm
9.5 × 22 cm
Air Chamber Structure
Honeycomb Multi-Point Structure
Dual-Layer Reflective Insulation
Specs diagram
Size Guide
  • Weight :580 ± 29 g (1.28 ± 0.06 lb)
  • Packed Size :φ10 × 22 cm (φ3.94 × 8.66 in)
  • Inflatable Size :183×56×9cm (72×22×3.5in)
Materials

GRS-certified 20D/40D TPU-Laminated Recycled Nylon

Accessories
  • Pump sack
  • Repair patch
Need help?

FAQs

Yes, especially if you camp on frozen ground, snow, or in winter conditions.
An ASTM-tested R-value of 8.5 makes this sleeping pad suitable for extreme cold conditions. In real-world use, it significantly reduces heat loss to the ground which is the primary reason people feel cold at night, even when using a warm sleeping bag.

You can absolutely use it year-round.

Inflatable sleeping pads work by reducing heat transfer from the ground. As a result, a high R-value inflatable sleeping pad helps maintain a comfortable back temperature in both cold and hot conditions. Its thicker construction also contributes to improved comfort and support.

No — it’s designed to minimize the “crinkly” sound often associated with insulated pads.

While some high R-value pads use loud reflective films, this model uses a quiet internal thermal layer bonded to the fabric, reducing movement noise.

Small punctures can be fixed with a standard repair patch in minutes.modern TPU-coated pads hold patches very well, often lasting the rest of the product’s life.

Yes. Our pads use 20D–40D nylon with TPU coating, a premium ultralight material designed for strength, waterproofing, and packability. The smooth texture is part of this lightweight design and helps reduce friction wear over time. We recommend using it with a sleeping bag or fabric liner for extra grip and comfort.

Yes — this is exactly what it’s designed for.
With ASTM R-value 8.5, 4-season rating, and stable air chamber support, it’s suitable for:

  • Winter camping
  • Snow camping
  • Alpine expeditions
  • Cold-weather field work

Many users searching “inflatable sleeping pad for cold weather” are specifically looking for R 7+, and this pad exceeds that benchmark.

No. R-value measures resistance to heat transfer from the ground — not heat generation.
In warm weather, it helps block residual ground heat and keeps sleep temperature stable.

We keep things simple:

Shipping:
In-stock orders are normally processed and dispatched within 24 hours on business days, excluding weekends and holidays.

Shipping rates and free shipping thresholds are calculated at checkout based on your location.

Returns:
Unused items in original packaging can be returned within 90 days of delivery.
If your item arrives damaged or defective, we’ll make it right.

International Orders:
Import duties and taxes may apply depending on your country.
For full details, please visit our Shipping & Returns and Warranty Policy pages.

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