She has a kitten with a heart condition. She is using the V3 and the Belt, the kitty is very small. So, how can she use the mat or belt as there is a positive and negative side. She’s not big enough to reach both.
Yes: Positive and negative mat, and kitten situated in the middle.
Whichever mat (or belt) is used in the base of the kittens bed, pillows or similar can be stacked around to keep the kitten in the center of the mat (or belt)