Is the top berth of train Z190 hard sleeper car 11 car No. 22 close to the toilet?

There are 2 rows in 1 room.

Yes. K1504 train hard sleeper car No. 11 is near the toilet, which is the window position on the left two-person seat in the first row.

The K516 train hard sleeper No. 22 middle berth is by the toilet, the details are as follows:

No. 1 and No. 2 are at one end of the carriage, and they are indeed close to the junction of the carriage, the toilet, and the attendant's room.

See the picture above, near the train office seats.