Disable sleep mode on Apple Watch only

Does anyone know can I completely disable sleep mode on my Apple Watch. I don’t mean turn it off, I mean completely disable it.

I have an iPhone 14 Pro so I need it still need the sleep schedule active on my phone otherwise the display is on all night (another stupid setup).

Previously I got round this by never going into the sleep app on my watch - but after I accidentally clicked on it it’s now always active at my scheduled time. I can’t seem to find a way to disable it for the Watch only. I don’t want to have to completely setup my watch as new just to disable this feature.

It’s a watch, and I want to know the time when I raise my wrist. Not have to tap the screen, then hold the crown for 5 seconds if I want to do anything.