If the excellent advice offered by my esteemed colleague Leroy does not change the issue:
1—If you have USB devices attached, try disconnecting them and see if the problem persists. Some older USB devices like old external drives and printers, can cause od sleep issues.
2—If running macOS 10.13 as indicated in your equipment profile, go to System Preferences > Network and select Wi-Fi:
"Advanced..." brings up a list of previously joined networks. Travel computers can collect a lengthy list. Delete any to which you do not need to connect on a regular basis. When my Macbook Pro started doing what you describe, I tracked the problem to the saved info for a lodge at which we stayed weeks earlier and 50 miles away. Deleting that network from the "remembered" list stopped my problem.
The process should be similar for newer macOS versions under Settings.
3—Third-party interferences: If you have any useless software like anti-virus, so-called "cleaning" apps, ore client-side VPNs (the ones that spend $millions$ on scary TV adverts), remove them. They all interfere with elegant protection and maintenance routines you paid Apple to build into your OS. They will mask real issues, making remote disgnostic here much harder.
Macs, cat-like, clean themselves and have sharp claws to fend off threats.
