Our two smaller cats like to take naps in it at the same time since it is so large. (catsplay.com)
She will sit quietly in it without crying to be held most times, and even takes two hour naps in it. (amazon.co.uk)
Just do note to cover it with a clean and a comforting mat sheet, just so your baby will feel more comfortable while taking their power nap in it. (babyishcare.com)