i have always given my kiddies pillows when they move into a bed - dd #1 was 21mths, ds 3yrs and 6mths and dd well she is 2 and still in a cot and won't be going into a bed until at least 3yrs (if not longer) so no pillow for her yet.

i did read somewhere a few years ago that actually sleeping with a pillow is not good for young children (sorry don't know why etc etc) but this has always been in my mind, i don't think it was a sids thing more of a posture type thing.

anyway i always start off with a junior pillow, my ds is nearly 7yrs old and he has only just in the last 6mths had a normal pillow