We have a few Saatva mattresses. Jury is still out for me. I keep a foam topper on our bed and I like it but don't love it. My husband loves it. It does feel like it's holding up much better than the more expensive mattress we had before though. No sags or dips or anything.
My middle and youngest have them too and our guest bedroom has one. The kids love them. My oldest will sleep in the guest bedroom when sick and wants that mattress instead of his (Beautyrest that isn't quite ready for replacement yet).
Still on the hunt for a mattress that both DH and I will love.
Mama to my boys (04,07,11)