Hi AliMusa,
Sorry … I should have also linked you to the list for the area within about 30 miles of Red Bank, NJ here (now corrected).
Outside of the retailers that are included on that list, the ones that are included in the Monroe Township/Newark I linked previously that are inside about 35 miles of you include …
http://www.shovlinmattress.com/ Fanwood, NJ. Factory direct manufacturer and a member of this site.
https://www.chiromatic.com/ Princeton, NJ. Retailer.
https://www.mycustombedding.com/ Clark, NJ. Factory direct manufacturer.
https://www.whitelotus.net/ Highland Park, NJ. Factory direct manufacturer
Shop Affordable Home Furnishings & Home Goods - IKEA Elizabeth, NJ. Factory direct manufacturer
If you extend the distance to about 50 miles then there would be many more.
Phoenix