Wat do you do with ur toddler ?

So

So my baby nurses for thirty minutes while going down for a nap and he has to dream feed. Now since he was born, hubby has been home so he takes care of our three year old while i nurse baby to sleep.

Hubby goes back to work tomorrow and im not sure wat to do with my three yr old duing the thirty minutes that baby’s nursing to sleep.

I don’t want him running in and waking up the baby but I also don’t want to abandon him.

Ideas?