Currently on the market there are many shops and stores selling cheap LED and solar lights, especially small retailers selling online. Many customers want to save investment costs, so they bought many poor quality lamps after only a period of use from 6 months to 1 year.
When calling the lamp seller for warranty, they could not be contacted, but the previous sales unit or contactable product did not have a name or label or warranty period stamp on the product, so these stores have since denied the warranty of lamps sold before, this has caused a lot of frustration for many consumers in recent times.
The example about the mattress sizing page you mentioned in the last, we can be a perfect example of new keywords and content, and broadening the funnel as well. I can only imagine the sale numbers if that was the site of a mattress selling company.