Back sleeper new to DIY bedding

Hi all,

I’m new and am looking to build my first mattress. In my research I feel that APM has the best value proposition and was wondering if I could get some advice before I purchase a mattress build. I currently sleep on a medium-firm memory foam mattress but am looking to make the switch to latex / natural materials.

For context I’m a 5’11" male, roughly 170lbs, and sleep 90-95% on my back and 5-10% on my side. I would like to spend ~$1,000 max and achieve a medium feel. Any thoughts or guidance on the below build would be greatly appreciated!

Base: 6" Caliber Edge Pocket Coil
Support: 3" All Natural Dunlop Toppers (Medium#28-33)
Top: 2" All Natural Talalay Latex Topper (Medium#25-29)
Cover: Queen Bamboo - Wool Zippered Mattress Cover

Thanks in advance!

@Arizona_Premium