Lost in Space predated both. The Robinsons were in stand-up hibernation tubes for their voyage. I'm sure that wasn't the first, but it was certainly before PotA.
Good questioni'm not sure if the concept ever happened inStar Trek or Doctor Who or Lost In Space back in the 60sIt would seem to me that maybe that was the only way they could comprehend a way for humans to make a long journey - not sure what other options there could beAn off-topic question would be what else did POTA do that was innovative for a sci-fi movie that had not been done with other 60s sci-fi films?I think we should work on a 60's index of sci-fi moviesPOTA and 2001 came out at about the same time, and both relied upon the technique of deep sleep to accomplish long space travels. I saw them both at a drive-in back then. I can't remember films using hibernation before that, but then, I was about 8 years old. Does anyone know when hibernation debuted as a sci-fi film phenomenon?
FF