I wanted a tummy time mat that was comfortable. I'd bought the clevamama moses basket mattress previously from Amazon so knew this would be good.
The support bar removes and so I also use it in my sons play mat for when he lies on his back. Simply add the support again and turn him over. Saves on space.
I am so impressed with this that I bought another 2 for presents for pregnant friends.
Used as a play mat liner I'm not worried of him getting flat head. I'm tummy mode, I know its comfortable and supporting him.
I've been using it for about 2 months now, and am very impressed with it.