Thundershirt provides a gentle, constant pressure that can help calm anxious pets. The recommended duration for using the Thundershirt generally depends on the individual pet and the situation for which it is being employed. Many pet owners find it beneficial to start by using the Thundershirt for shorter periods, such as for fifteen to thirty minutes, and then gradually extend the duration as the pet becomes more comfortable. For situations that trigger anxiety, such as thunderstorms, fireworks, or travel, the Thundershirt can be worn for the duration of the event, as long as the pet appears relaxed and at ease. It is important to observe the pet's reactions and make adjustments based on their level of comfort. For specific guidelines tailored to your pet's needs, it may be helpful to refer to the resources available on the Thundershirt website.