Cold nights shouldn't mean a bad night's sleep. The Graphene USB Heated Sleeping Bag brings modern heating technology to your outdoor kit — using fast, efficient graphene heating elements that warm evenly across the full 210 × 75 cm sleeping surface. Simply connect the integrated USB lead to a standard power bank, dial in your preferred heat level, and settle in. When you don't need the heat, it works as a reliable warm sleeping bag on its own.

The rectangular design gives most adults proper room to turn and stretch, and the 10 TOG rating (printed on the bag) gives you a concrete guide to its insulation performance. A full-length two-way zip works two ways: seal everything up on cold nights, or open the foot end for airflow when the temperature climbs. No clunky built-in battery to