Nightform Beds

A friend of mine has a baby on the way, and he's been trying to get hold of one of these NightForm beds that are supposed to protect the baby's fragile skull from early flattening due to its sleeping position. Seems like a good idea. I've had a check and they only cost about $40, so I think I'll pick one up as a gift.
Anybody had any experience with these beds? I'm sure he'd like to hear any feedback you have.