Naughty feets

Sometimes I struggle with my back feets.
When I'm napping, they stretch out.

If I'm sleeping on the human's bed, sometimes they stretch out too far and I have to wake up before they make me fall off.

I have the same problem when I sleep on the shelf above the big, white, warm thing - my back feets stretch out and I fall off the shelf, or have to wake up, panicking, before I fall off.

I wish my back feets would behave while I nap.