How Do I Get iPhone 14 Pro Max To Have an All Night Display?

Hi Gary – I have just purchased an iPhone 14 Max Pro and wanted to use it as a replacement for my bedside clock as Apple Watch can on its side. But in the sleep focus, to turn the watch display off (I use the watch on now to get sleep information), the screen goes blank. No constant on. Is there a way to use the iPhone 14 as a bedside clock at all? ie show the time all night? Thanks
I want to do this to replace a bedside clock and iPhone is on charger too (ie it’s on a stand). This would then works wherever I am, hotels etc.
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Jonathan