Suggest you wait Aerofoam warehouse sale. Got a queen size latex bed for 2.6k ( either 2.6k or 2.8k, can't remember )

I just found the receipt... LoL

It was 1.7K only.... Tara is full latex

Medium firm can check out VONO SpinePro 800
I use 1200 (firm) not bad but only few months

buying bed better test first. everyone size and requirement differs.

I would recommend Seahorse brand.

So far I feel quite good, especially for asian people (seahorse is HK brand)

Price range is 2.5-3k depending on model or size. dont know what tech they use.

The most important feature to me is the bed is more to hard (like coconut husk) but at the same time very light weight. so when change bedsheet no need to break back.

check their shop in 1U or sunway pyramid

Tested VONO SpinePro 800 ok not bad, price also can nego down a bit.
Then tested SpinePro 1200, checked the specs with 800, some difference indeed and felt better on 1200.

At first tested VONO Luna - not bad quite comfortable but the 11" thickness meant needed to change all bed sheets

In the end went for Back Relax 2 instead. Haggle for discount and got free pillows thrown in.

Side sleeper - better test out the firmness of the bed see whether ok or not. Otherwise you'll end up sore back, neck and shoulders.

Mattress is too firm, can add latex on top to solve the problem, but mattress itself sink and lose support no chance gotta change already.

Anyway, mattress use 10 years good enough already lor.

Good luck hunting!

RM 2.5k technically doable for Getha
only got to scout for it

purchased Getha King size + Bedframe for RM 2.7k with delivery early 2021
it was their older model made for fairs, but was sealed brand new

if you're pleasing wifey, do scout for tencel bedsheet sets too. beats buying flowers.
its like once you go black, you never look back feeling - I find it much smoother than Egyptian cotton

Is the matteess in a box brand like Sono any good? Their ads look like good quality

Dunopillo or Getha the best, others is literally trash bed with good marketing
based on true story 

Bought a king size Sealy bed for about RM3.3k.

Bought from Lazada, king size with latex form on top.
Medium firm. Shy of 400 including shipping.
After 3 years still okay.
So far rotated once.