I’ve had this one for three years now. Amazing sleep. A few family members got one too and they rave about it.

https://www.amazon.com/gp/aw/d/B016WJWC5I?psc=1&ref=ppx_pop_mob_b_asin_title

Got this mattress at the start of intern year and it’s been great. Just like one review said, “Good sleep happens here.”