[wecker1]

I can't speak to the Tuft & Needle brand but we like a firm mattress and obviously the stock mattress provided by Keystone wasn't it. We opted for a 3" Firm mattress topper by "Sleep on Latex" which is highly rated by Consumer Reports for folks that primarily sleep on their back. Slept on it last night for the first time and it's extremely comfortable. Sleep on Latex will cut the topper to any size so I provided the measurements of our "RV" king and they cut it to fit. You can either order direct or through Amazon. They have a 100 day trial period and it can be returned no questions asked at their cost. We originally purchased one for our S&B king mattress and have slept on it much longer...and no, it's not hot to sleep on. Good luck.