Upgraded my dad to J class. I have him in seat 9K currently. Seat 1A & 1K just opened up and Seat 6K is available. Should I move him to 1K or leave him in 9K?

I was in 8A and the opening/closing of curtain whenever someone goes in/out of the galley bugged me a bit when I was trying to sleep so I am thinking 1A/K may be the same?