These Standard Bed Pads are large sensor pads that are high-quality, reliable and easy to clean and sanitize. Each bed pad is categorized based on expected lifetime, and in general, the thicker the film the longer it will last. Those pads with a silver lining are also shown to last longer than those without. The 45-Day Pad is .05mm thick with carbon-lined conductive film, the 180-Day pad is .1mm thick with carbon and silver-lined conductive film, and the 1-Year Pad is .11mm thick, with silver-lined conductive film. These pads are excellent for personal or professional care.