Just ordered, curious on frame

Got hybrid mattress, very excited but I saw if u don’t have a frame or box spring it could hurt mattress long term. How long do I have to get a frame before there’s actual performance decrease sets in? I’d guess I’ll have one in like 2-6 weeks so it’s not super long term but how urgent should I consider the buy?

(Yes I’m broke enough that $100 frame isn’t rly doable in time for mattress arrival)

I heard about making sure it has air to breath n stuff :)