The culprit that is responsible for robbing you of a good night's sleep, is memory foam....the primary upholstery material in both of those mattresses.
During its 20 year history, memory foam has proven itself to be the absolute worst upholstery material ever invented...contrary to all the hype.
Prior to the pervasive use of memory foam by all the major brands, the problems associated with memory foam were non-existent.
So, logic dictates to avoid mattresses made with memory foam.
There are two other foams used to make mattresses, over the last 50 years. The most common is polyurethane.
The absolute best, (most comfortable and longest lasting), is natural latex...and has been so for the last 100 years.
Poly foam is reasonably inexpensive. Latex is the most expensively made, starting as the sap from the rubber tree.
I have a couple of options for you.
These Old Fashioned, Two Sided Mattresses from The Wolf Company...are well made and reasonably priced.
Wolf if the oldest mattress manufacturer in the country that has been continually owned and operated by the same family...Since 1873
Introducing the Duo-Comfort mattress, providing your customer with comfort options in one single mattress. The Duo-Comfort is a 11″ double-sided mattress that has a firm side and a plush side.
The best you can buy is The Natura of Canada Greenspring Mattresses.
These have the highest coil count, the strongest coils and Natural Talalay Latex upholstery.
The most comfortable of their 4 models, is the Ultra Plush...the model we sleep on at home.
The Liberta Firm Mattress delivers improved well being and scrumptious comfort with eco-friendly flair. A layer of NaturaWool™ maintains temperature control and gently buffers pressure points to diminish nighttime tossing and turning.
The mattress in both of these options, contain NO Memory Foam.
In both cases, delivery is free and there's no sales tax.
The Wolf Mattresses take about a week to arrive and are delivered via FedEx.
The Natura of Canada Greenspring Mattresses come with White Glove Delivery, which includes removal of your old mattress.
Wait time is about 3 - 4 weeks.