Footed Sleeper I Know This Is A Weird Question But How Can You Tell When A Baby's Footed Sleeper Is Too Small?

I know this is a weird question but how can you tell when a baby's footed sleeper is too small? - footed sleeper

My mother told me that my girls are too young bonds. I think it is good, but wondered what basis are they too small? There may be up in them. I know that you have your feet on the edge of the spasms in the back of them, so I think you go to the next size up soon.