DD has one.... actually two. She uses it to prop herself up - she sleeps weirdly. i give up trying! LOL. If I only put one in her bed she uses her poor stuffed toys to make up the difference! ROFL.

We gave her one because she was often refusing to sleep in her bed and would only sleep in our bed with her head on one of our pillows. So i introduced a pillow to her bed and it fixed the problem. when she got sick i introduced the second one to assist with drainage of the nose and haven't been able to get it out! We bought the Target toddler one and i hate it. it is too big for the pillow cases that come with the cot sets etc. The other pillow she uses is a standard thin pillow.

hth

mg