USGI USMC Improved Sleeping Mat (ISM) - Coyote Brown

The Marine Corps Standard for Field Sleep Systems.

Upgrade your ground game with the genuine USMC Improved Sleeping Mat (ISM). Originally designed to replace the cumbersome roll-up mats of the past, this accordion-style folding mat is a favorite among bushcrafters, hikers, and survivalists for its bombproof durability and ease of use.

Manufactured by Therm-A-Rest (Cascade Designs) for the U.S. Military under NSN 8465-01-606-8756, this mat is constructed from closed-cell crosslinked polyethylene foam. It will not absorb water, meaning it retains its insulating properties even if nicked, torn, or soaked. The unique "Z-fold" design allows it to pack down into a rectangular block that sits flush against your ruck, and it deploys in seconds—perfect for a quick seat during a halt or a dry platform for gear organization.

Key Features:

• Genuine USGI: Authentic Marine Corps Issue (Coyote Brown).
• Accordion Design: Folds flat into a compact block; no more fighting to roll up a stiff mat.
• Closed-Cell Foam: 100% waterproof and retains warmth even when compromised.
• Insulating: Traps air to prevent heat loss to the cold ground.
• Versatile: Can be partially unfolded to create a customized seat or pillow.

Specifications:

• NSN: 8465-01-606-8756
• Material: Crosslinked Polyethylene Foam
• Color: Coyote Brown (USMC)
• Dimensions (Unfolded): Approx. 72" L x 23" W x 0.25" H
• Dimensions (Folded): Approx. 23" L x 5.25" W x 5" H
• Weight: Approx. 1.3 lbs
• Country of Origin: USA