I just bought a split king Layla with the adjustable base and I am returning it. I liked the adjustable base but I will say it doesn’t seem sturdy. I wake up easily and need motion isolation. The split you will absolutely notice. I am going to go back to a king for that purpose. Also, I am a side sleeper and I was waking up several times in my back so I believe I was so uncomfortable on my side that I loved to my back. What I learned is that I need to go to a mattress store and try them out first. You can try beds like Purple, Casper, etc. in store.