I only have 3 toddlers in my care (2 my own, 1 dck) and my living room is the sleep area, i just put the curtains down. 2 of them - my own kids ages 3 and 2, and my dck is 3.

I put Treehouse TV, they seem to have shows about sleeping bear at noon, perfect ! and they all fall sleeping, and i turned off the TV after, i put my feet up, and have my quite time. I use to turn off TV, but then they start talking. So, i figure that putting the TV on get their attention and they fall sleep fast.

my living room has no couch, so that gives me space for playpens. Now, the 2 - 3 year old's are in their cots, so I have one playpen. I have one big chair to sit for my quite time.

At some point, these toddlers were talking, even with TV on so, I send one of them in the basement as it is also a playroom. Which one? I toss a coin, or whoever is the loudest sleeps or have quite time in the basement.

At some point, I was in your situation, and I get so exhausted at the end of the day, because i did not have down time.

Hope it gets better.
Angie