SEA TO SUMMIT Foam Core sleeping pad insert — blue polyester cover, urethane foam, 130×340×240 mm

SEA TO SUMMIT Foam Core sleeping pad insert — blue polyester cover, urethane foam, 130×340×240 mm is a compact foam insert designed to add insulation, structure and cushioning to inflatable and self-inflating sleeping pads. The product pairs a blue polyester outer cover with a urethane foam core to improve comfort and thermal separation from the ground. With dimensions of 130 mm × 340 mm × 240 mm, the insert is intended for use as an internal layer or standalone thin pad in lightweight camping, backpacking and outdoor rest situations.

Advantages

The urethane foam core provides consistent cushioning and structural support, while the polyester cover offers a quiet, durable surface. The foam insert increases insulation under the sleeper and reduces the loss of warmth to the ground. Its compact rectangular dimensions make it easy to position within or under compatible sleeping pads, and the breathable construction contributes to temperature regulation. The product is manufactured using recycled materials where possible and is designed for lightweight packing and practical outdoor use.

Suitable for

• Adding insulation and support to inflatable sleeping pads and lightweight camping mattresses
• Backpacking and multi-day hikes where reduced weight and packability matter
• Car camping or basecamp use as an extra cushioning layer
• Replacing or upgrading existing thin pad layers to improve comfort and warmth

Key specifications

• Cover material: polyester (blue)
• Core material: urethane foam
• Dimensions: 130 mm × 340 mm × 240 mm
• Function: insulation, structure and cushioning for sleeping pads
• Construction: breathable foam core with fabric cover

How to use

Place the Foam Core insert inside a compatible sleeping pad sleeve or position it directly on the pad surface beneath your sleeping bag to add cushioning and insulation. Ensure the fabric cover faces upward for a comfortable sleeping surface and align the insert so it covers the area beneath your torso and hips where support is most needed. When packing, roll or fold the insert with the pad if space allows; the insert is intended to be simple to fit into existing pad systems and to require no special tools or attachments.

Usage recommendations

For best thermal performance, center the insert beneath the sleeping bag’s torso area and avoid exposing it to prolonged moisture; allow to dry fully before storage. Match the insert size to your sleeping pad to prevent shifting during the night. Clean the polyester cover according to the manufacturer’s care guidance and avoid abrasive cleaning methods that could damage the fabric or foam.