OOOH! I hear ya, I take care of my nephew, who does this very thing. Although his crying is much shorter, he will cry when I first lay him down for about 3-5 minutes tops, then right to sleep, but wakes up any time noise is made (which is nearly impossible to avoid) or about every 20-30 minutes through nap. The thing is...he does it at home too! They will tip toe around the house during his naps to try avoid waking him, and he IS quite "spoiled" to say the least. He makes it through when he is here, and I firmly believe he is better off some days when here...I do not cater to any child. Not even a nephew.