Thickened fleece sleeping bag liner — comfortable, warm, and compact Key benefits Keeps you warmer: Thickened fleece provides superior insulation so you retain more body heat during cold nights outdoors. Gentle on skin: Soft, skin-friendly material increases sleeping comfort whether used inside a sleeping bag or on its own. Saves space and weight: Folds down to 15*15*3 cm, taking minimal room in a backpack so you can carry essential warmth without bulk. Versatile use: Designed to function as a sleeping bag liner, an extra blanket for added warmth, or a lightweight indoor quilt. What it is Material: Thickened fleece for a soft touch and enhanced thermal performance. Packed size: Compact 15*15*3 cm when folded for easy storage and transport. Function: Acts as a liner inside a sleeping bag, a standalone blanket, or a quilt for indoor use. How it solves problems Cold nights: Adds insulation to an existing sleeping bag or replaces a heavier sleep system when you need to travel light. Limited pack space: Small folded size means you can carry extra warmth without sacrificing space for other gear. Variable conditions: Use it indoors or outdoors to adapt quickly to changing temperatures or sleeping arrangements. Performance and compatibility Works as an internal liner to improve the insulating performance of most sleeping bags (adds comfort and warmth without changing the bag). Comfortable enough to use directly against skin thanks to the soft, skin-friendly fleece. Lightweight and easy to stow under or inside other gear while hiking, camping, or traveling. Practical use scenarios Weekend camping: Slip it inside your sleeping bag to boost insulation on cool spring or fall nights. Backpacking and hiking: Carry it folded in your pack to save weight and space while still having reliable warmth at camp. Travel and indoor use: Use as a compact extra blanket in hostels, cabins, or at home when you need a light, cozy layer. What to expect A warm, comfortable sleeping layer that is easy to pack and quick to deploy. Versatile performance for outdoor adventures and indoor use without adding bulk. Note: Product features are limited to the listed material, folded dimensions, and multifunctional uses described above.