I think go showroom, ignore brands, and just lie down. Don't listen to salesperson talk. End of the day listen to your body.

Just ask salesperson to show you all the mattress within your budget and requirements e.g. firm.

why limit myself to try only 1 mattress when I can try so many?

I go shop can try many. And compare. That online mattress compare with what? Keep old mattress and compare with that? Lol

If you don’t try more, you won’t know what’s available out there. Because you don’t know what you don’t know.

Why only sleep with 1 mattress for 120 days when you can sleep on 10 or 20 mattress in 120 minutes..

That way you can narrow down what you like or don't like.. with 1 mattress you have nothing to go by.. its either you accept or don't accept. To me that's a compromise.

Lol
How you know it last a long time? Based on what? Doesn’t sag easily? How you come to that conclusion? And what’s your body weight? You sure it won’t sag cause I’m 112kg.

New account and come “share”.