Some weighted eye masks are designed to be microwaved briefly to provide a warm, soothing sensation for the eyes and forehead. However, checking the manufacturer’s instructions before microwaving any eye mask is important. If your eye mask is filled with flax seeds or other natural materials, it may be safe to microwave for a short time. However, eye masks that contain foam or gel inserts should not be microwaved, as they may melt or become damaged. Generally, it’s best to follow the manufacturer’s instructions for care and use your weighted eye mask to ensure that it remains safe and effective.