What is the correct size pillow for a toddler?
A 13" x 18" low-loft pillow is the recommended size for toddlers 2 - 4 years. Although that may look small from an adult's point of view, or on a bed, remember the important factor is the comfort and support of your precious child; not the decor. If you want pillows to fit the bed or the bedding that came with your sheet set, by all means use them during the day and give your child the appropriate size pillow for sleeping at night.
An additional advantage to our Toddler Pillow is that it comes with the ability to adjust the loft, or height, of the pillow. This is a vital accommodation as that age grows so rapidly. An invisible zipper on one end allows you to customize the support as your child grows. You simply take out some fill to make it lower for the younger toddler and add more back for the older.
In addition to the orthopedic reason behind a small low-profile pillow, the smaller dimension often encourages a restless child to move less during the night. Many parents are surprised, but pleased, at finding that their toddlers are more stationary as they learn to stay on the pillow while sleeping. Be aware though, every child is different and will adjust at different rates to a new pillow. Many in the early months may not even use a pillow the entre night, preferring to come on and off of it as feels most comfortable to them.