Same here. Have a new MBP 16" Catalina 10.15.4 and it is happening every night. Just came back to work after leaving for an hour and it was also off. I send the report to Mac every single time. I am pretty annoyed that this is clearly a serious issue and not being addressed.
No I am not running Norton or any other "cleaning" software. I have been using this computer for about 3 months now. I am not at all pleased with the suggestions that I just reinstall everything-seriously, do people actually think this is a viable solution?
I will start the workaround suggested with stopping the hard drive to sleep option. I am not at all thrilled about the complete shutdown each night-honestly this is one of the things I like about Macs is the ability to resume work easily every morning without having to completely restart.
I notice that in the report it often has the suspected bundle being some version of com.apple.iokit.IPPCIFamily
I saved the entire report but not posting here. Apple needs to fix this.