This pricey infrared therapy mat claims to help mood, sleep and muscle recovery. It felt more like a glorified heating pad Plastic-free cutting boards and $17 bike lights: 11 things you loved in March Sign up for the Filter US newsletter, your weekly guide to buying fewer, better things This pricey infrared therapy mat claims to help mood, sleep and muscle recovery. It felt more like a glorified heating pad Plastic-free cutting boards and $17 bike lights: 11 things you loved in March Sign up