A nice 'bed' for your iphone 12 or iPhone 12 Pro to sleep in with wireless charging. You just need to add a cheap 5 usd wireless charger from banggood to the bottom. You can find it here:

https://www.banggood.com/Bakeey-Q5-5W-LED-Indicator-Fast-Charging-Universal-Wireless-Charger-Pad-For-iPhone-X-XS-XIAOMI-MI9-S10-S10-p-1553630.html?rmmds=search&ID=224&cur_warehouse=CN&p=4F231016744302015050&custlinkid=1313762

I used a CNC to carve it from wood, but obviously you can also 3D print it.

I've also made an iPhone 11 Pro version:

https://www.cgtrader.com/free-3d-print-models/gadgets/other/iphone-11-pro-wireless-charging-dock

This is a work in progress. I got all dimensions with help from images from the Apple website so it should be a good fit, but I can only tell for sure after I got my hands on my 12 Pro later :)