Are the ones at Target terry cloth? I was in there earlier this week and the ones at my Target are polyester, and I too, wanted cotton. But they might have different merchandise in different parts of the country.
OP, I just this afternoon bought the ones a PP mentioned from JC Penney. I have 124 & 14 year olds, too, so I brought them with me, and they both liked them a lot. I did have to buy men's robes, so they are a little large, but my boys are growing like weeds (oldest is taller thaan me already; youngest is close), so they should be able to wear them for a long time, lol.
Right now Penney's is having a special...spend so much and they automatically take off either $10, $15, or $20, so I got them even cheaper, also.