No PJs or mattress topper were offered (do EY offer these on any flights?).
I've been offered PJs maybe once or twice - both relatively recently. I've also got a mattress topper maybe once or twice too. I kind of assumed they were trialling these concepts on certain flights, as IME neither has ever been a standard offering.
One thing I did like is the new (for me at least) 'dine at anytime' concept in J. If you eat in the F lounge just before the flight, it is good to allow three or four hours to pass before eating again on the aircraft. I would like this concept to filter through to all airlines. I know a number of airlines offer it in F.
I fully agree, this is one of my favourite aspects of J on EY. BTW, it's definitely not new to EY, they've had it since my first ever EY J flight, which I think was back in 2010. It is still almost unique to EY though, I think.