Anyone tried NeckPro? Is their mattress good?

Not knowing there's such informative thread here, i posted in another thread asking for advice on buying a new mattress as we're moving to a new house. Did a bit of research after some of the seniors here posted napure brand, but it's way too expensive for me...

Due to our financial constraints, are there any cheaper alternatives, like within the range of RM1.5k?
As we need to spurge more on other costly necessities first, we can only afford to have a lower - mid range priced mattress.

Would appreciate any advice given.