As temperatures drop in October and Ofgem announces a 4% increase to the energy price cap, shopping writer Lucy Addicott is relying on the Silentnight Heat Genie Self-Heating Blanket to stay warm without turning on the heating. The blanket, which requires zero electricity to run, costs between £34.99 and £39.99 upfront depending on the colour.
How the Blanket Works
The Silentnight Heat Genie features a built-in heat-reflecting foil layer designed to bounce natural body heat back at the user. Measuring 180cm x 240cm, the blanket is large enough for multiple people or pets. The outer fabric is a smooth plush with a super-soft sherpa fleece lining inside, and despite the foil layer, it remains soft, flexible, and quiet.
Money-saving expert Martin Lewis has previously championed the idea of heating the human rather than the home, urging people to rely on hot water bottles and oversized hoodies to stay cosy without radiators. Following that advice, Addicott purchased the blanket last year when it was only available in grey; it is now stocked on Amazon in leopard print, khaki, natural, and burgundy.
Testing the Blanket
Addicott tested the blanket for a few hours and found it traps heat remarkably well, creating a comforting wall of warmth distinctly toastier than a standard throw. Unlike an electric blanket, the temperature cannot be adjusted with a dial, but since it runs for free, she considers that a fair trade-off. It does not provide instant heat like an electric blanket.
Shoppers say it keeps them 'snug as a bug' and 'even without the heat on you keep warm under the sherpa layer'. The blanket is machine washable and quick-drying, which Addicott notes is helpful for pet hair, as her cat immediately claimed it.
Alternatives and Final Verdict
For those who prefer plug-in heat, the StaySnug Sherpa Electric Heated Throw from Lakeland (£54.99) remains a top pick. The Slumberdown Comfy Hugs Electric Blanket Heated Throw is on sale for £27.58 down from £45.99 at Debenhams, with nine temperature settings and machine-washable fabric.
Addicott has officially swapped out her old throw for the Silentnight Heat Genie because it keeps her significantly warmer without adding a single penny to the electric bill, and she plans to do the same this year.
