During anesthesia patients have a poor control of their body temperature. Additionally smaller patients are at greater risk of falling body temperatures. In order to minimise risks for our small veterinary patients we employ body warmers during all anaesthetics. We have found the gentlest method of preventing heat loss is to cocoon patients in a blanket of warm air. This avoids the danger of lying on hot spots on heated beds for example. Essentially our body warmers are like very large hair dryers connected to a blanket which embraces the patient within a bubble of warm air. The blankets are either disposable or fully washable in order to maintain cleanliness and hygiene.