Interestingly, the reservation system is now blocking off new reservations on certain days starting October 1st in sleeping cars, but coach seats are still available. Not all routes are modified yet in the system but I've started to go through and figure out the new schedule assuming that is the reason for the lack of sleeper space in the system.
The CL and LSL would arrive Chicago on Monday, Thursday, and Saturday. These are also the same days the Cardinal arrives in Chicago.
The CZ would leave Chicago on Monday, Wednesday, and Saturday, meaning same-day connections two days per week.
The TE would leave Chicago on Sunday, Tuesday, and Friday, allowing continued tri-weekly thru-service to Los Angeles but eliminating same-day connections from the East Coast.
The CL and LSL would also leave Chicago on Monday, Thursday, and Saturday. For reference, the Cardinal leaves on Tuesday, Thursday and Saturday.
The CZ would arrive on Monday, Thursday, and Saturday, meaning same-day connections to the CL and LSL tri-weekly and two weekly connections to the Cardinal.
The TE would arrive Chicago on Monday, Wednesday, and Saturday, which preserves thru-service from Los Angeles and allows for two weekly connections to the LSL and CL but only one for the Cardinal.
I will update this list as the reservation system is changed.