Underquilt (Hammock)

Underquilt (Hammock) reference article on thruhikingwiki.com.

Overview

An underquilt is an insulated layer suspended beneath a hammock to provide warmth by eliminating convective heat loss from below.

Key points

  • Replaces or supplements sleeping pads in hammock systems.
  • Available in down or synthetic insulation.
  • Essential for cold-weather hammock camping.
  • Designed to contour to the hammock’s shape for consistent insulation.

Details

Underquilts are tailored to insulate the underside of a hammock, where compression eliminates the insulating ability of traditional sleeping bags. They hang loosely to maintain loft and reduce cold spots. Temperature ratings vary, and proper adjustment is crucial for warmth. Combined with top quilts, underquilts create a complete hammock sleep system suitable for multi-season use.

Illustrative hiking footage

The following external videos offer general visual context for typical hiking environments. They are not official route recommendations, safety instructions, or planning tools.