Exped SIM 3.8 Sleeping Mat - LW - Long Wide - black

The SIM 3.8 is one of our classic self-inflating sleeping mats. It’s the perfect choice for outdoor enthusiasts who prioritize low weight and a compact pack size. It offers everything you need for a restful night’s sleep in nature.

The mat is the ideal companion for lightweight treks with low weight in spring, summer, and fall. It is lightweight, compact, and therefore very easy to carry. With its 3.8 cm thick foam insulation, the SIM 3.8 provides sleeping comfort even on hard surfaces and protects against the cold ground. The practical flat valves ensure quick inflation and deflation.

The durable, recycled polyester outer material feels comfortable against the skin and is also eco-friendly. No matter what trekking adventure you’re on—this mat combines quality, comfort, and sustainability at an affordable price.

Features of the Exped SIM 3.8 sleeping mat

• R-Value (ASTM): 4.6
• Temperature: -15 °C
• Season: 3-season (spring, summer, fall)
• Inflation system: Self-inflating
• Shape: Rectangular
• Thickness: 3.8 cm

weight:

• M - Medium: 860 g
• LW - Long Wide: 1185 g

width:

• M: 50 cm
• LW: 65 cm

length:

• M: 183 cm
• LW: 197 cm

Packed size:

• M: 26 x 18 cm
• LW: 33 x 19 cm

scope of delivery:

• Sleeping pad
• Packing bag
• Repair kit

Material:

• Recycled 75D polyester
• TPU polyether film laminate
• Embossed honeycomb structure
• Oeko-Tex® 100 certified
• No intentionally added PFAS

Insulation:

• 14 kg/m³ PU foam
• Oeko-Tex® 100 certified
• No intentionally added PFAS