We've been using this since he outgrew the bassinet and went into the pack and play for sleep (so two months now). My baby has still developed a flat spot on the back of his head right where the hole is. I think this kept the flat spot from being worse but now I need to find and buy something else because this didn't 100% work.

Weve used this product with 2 kids and we love how easy it is to correct their slight flat head!! Easy to use on any surface/car seat/bouncer.

Works very well, my son sleeps on his back at night and started to get a flat head this pillow changed that. Happy I purchased it.

What I was looking for! Great price and good quality.

This actually, legitimately works. Buy it now. Right now.