Hi messypanda,
Thanks for letting us know what you ended up deciding and as you know I think you made a great quality/value choice.
Congratulations on your new mattress 
I’m looking forward to any comments and feedback you have the chance to share when you receive it and have had the chance to sleep on it for a bit.
While I don’t have any specific suggestions … there is much more information about choosing sheets in post #7 here along with the other posts, topics, and sources of information that it links to.
Phoenix