In Russian, "Spimla dinet" ? In English: By the fire, pussies sleeping, curled up fast asleep

A Russian (I believe) Lullaby:

In English:

By the fire,
Pussies sleeping, curled up fast asleep.
Save your ___
Until tomorrow,
Hush now, go to sleep.

A song sung by my mother to me when I was very small.