Sleep not working.

I have pretty much a good experience with the first macOS Ventura beta. Except every time I close my 2018 MacBook Pro and assume it's going to sleep, it just stays on and I end up with a dead battery. Is there anyway to fix this? I have the 'disable display from going to sleep' setting when on Power Adapter, but it seems to be doing the same thing when it's not connected? or just not entering a sleep state. About to apply Beta 2 but thought I'd mention this.