just adding some data points having just returned from a trip to Singapore on the ULR config where I had both the traditional seat (window) and bulkhead (11D). At 6ft I actually found the traditional seat to be more comfortable, although I am a side sleeper, I got better sleep, over 7 hrs. On the bulkhead I found myself tossing and turning more and only got around 5 hours sleep. noise in row 11 wasn't an issue as I always wear ear plugs, had my own but the attendant did offer me some without me requesting

On both outbound and inbound the bulkhead seats opened up at around the 96-98 hr mark. I quick chat via the app and I was able to change to them.

Anyway, just my general thoughts for what it's worth