Hotcore | Cloud Flex Insulated Sleeping Air Pad (Rectangular)

If you’ve ever spent a night tossing and turning on a pad that felt more like a pool floaty than a bed, the Cloud Flex is about to change your perspective on backcountry sleep. This is Hotcore’s most comfortable pad yet, featuring a unique 4-way stretch brushed polyester top that actually cradles your body rather than resisting it. Because we only stock the Rectangular version, you get the full 25-inch width and 75-inch length—meaning no more waking up with your arms or feet resting on the cold ground. With a massive 4 inches of loft and a winter-ready R-value of 6.0, this pad provides a plush, quiet, and warm foundation for your tent, making it just as suitable for a chilly autumn weekend in the Highlands as it is for a breezy summer night on the coast.

• 4-Way Stretch Comfort: The 30D stretch brushed polyester top fabric is soft to the touch and moves with you, eliminating the "crinkly" plastic sound common with other ultralight pads.
• True 4-Inch Loft: A generous 10cm thickness ensures that even side-sleepers won't "bottom out" or feel the roots and rocks beneath the tent floor.
• High R-Value (6.0): Insulated with two layers of Mylar film to reflect body heat, providing enough warmth for genuine four-season versatility in the Maritimes.
• Quilted Stability: The specialized quilted construction prevents cold spots and keeps the internal insulation from shifting, providing a consistent, level sleeping surface.
• Integrated Pump Sack: The seam-sealed carry bag doubles as a high-volume pump sack, allowing you to inflate the pad in seconds without introducing moisture from your breath into the interior.
• Durable Hybrid Build: Combines a cozy stretch top with a rugged 20D nylon ripstop bottom, ensuring long-term durability against the friction of the tent floor.

Best For

• The Effort: Backcountry backpacking, car camping basecamps, and four-season adventures.
• The Goal: Maximum sleep quality and warmth without the "sleeping on a bag of chips" noise.
• The Conditions: Everything from warm summer nights to frosty late-autumn mornings.

Technical Specifications

• Shape: Rectangular (Maximum surface area)
• R-Value: 6.0
• Dimensions: 75″ x 25″ (190 x 63 cm)
• Thickness: 4″ (10 cm)
• Carry Weight: 950 g / 2.1 lbs
• Materials: 30D Stretch Polyester (Top) / 20D Nylon Ripstop (Bottom)
• Inclusions: Multi-use pump sack/carry bag and repair kit