Your computer was restarted because of a problem

Brand new Macbook pro 16". Same issue with restarts after sleep. Clean install without any data migration.

Switched off power nap for now, wiil see if it helps.

MacBook Pro (16-inch, 2019)

MacOS 10.15.4

Same problem. Returned the first Mac pro 16" back to Apple because of it, but now I'm having the same problem with the second MacBook pro 16" running Catalina 10.15.5. Both were refurbished - wondering if I'm inheriting these kernel panic malfunctions from previous users???? Have spent hours and hours and hours with Apple specialists by phone who seemingly have little knowledge (about 6 hrs this week alone). Machine will work in Safe mode while I'm on the phone, then, after some unknown period of time, it reverts back to: "Sleep transition timed out after 180 seconds while calling power state change callbacks.". If I had never owned a Mac before, I'd have assumed they were terrible machines and sworn against them...

Included Etre report per orangegrouptech.

I am having the exact same issue! They are telling me it's a hardware problem and I have to take it to a licensed apple specialist! Did you resolve this?

I intentionally set this laptop us as a new mac with ZERO migrations over. No time machine restore. I organized everything on to an external drive and a WD My Home drive. Once I set up the new mac, I downloaded the "mac" apps (pages, numbers, etc.) and Adobe CC + apps. Otherwise, nothing else.

My computer currently shuts down nearly every time the screen goes all the way dark. Not every time, but almost. This is a major issue because I frequently leave my laptop on do upload videos, photos etc. I'm a photographer & videographer.

The laptop being on or off of the charger doesn't seem to make a difference. It is happening both ways. I really don't think I need to spend $80+ taking this to a repair place.. it's a brand new laptop (ordered directly from apple) and it seems to me to be a software issue probably. There needs to be a firmware update to prevent the kernel errors from happening over and over again.

I just ticked off the energy settings, like someone mentioned above. Hopefully that will help.

I'll give it a go. I don't have dropbox installed on this computer. I ran it for two days before I installed any other apps on it, and it was still happening then. I have reinstalled a fresh OS twice, and completely restarted from a wiped drive once. No luck. Maybe it is hardware and i'm just being stubborn!

Thanks for the advice!

I'm in the same boat -- no migration, no nothing! Other than the things that automatically pulled over from being saved in iCloud, this is a clean install. Hoping the Power Nap trick works, although disabling a feature is silly logic... "it works as expected, so long as it's turned off."

Same issue here! Got this twice upon wake from sleep overnight. Brand new MBP16 on 10.15.4

The same thing is happening on my 2015 iMac too. :(

It's working for me so far, 3 days in.

For me disabling "Automatic graphics switching", "Put hard disk to sleep when possible" and "Enable Power Nap" did not solve the problem. Still crashes when left unused for a while.

Same problem here :-(