Pups are all gaining nicely. Momma Nami is super attentive but goes outside of the xpen and watches them when they sleep. This way she can cool off. If they sleep between feedings, it means their bellies are full. This is what you want. Sleep allows growth as they are not expelling much energy when not moving a great deal. We all move during sleep but less than when awake.
Pups have round tummies after eating. They are lively and mom dotes on them.
I tried to do an individual video of each litter. This way you can see them in action.