Thanks to all for the tons of information here - I’ve lurked and delved, now have a dilemma.
I am putting together a daybed - a twin size bed that will serve dual purpose for sitting/lounging/napping. I have a height limit and frankly not wanting to duplicate my current sleep bed system. Why? I sleep on 6" latex core, 2" talalay topper, with a wool topper and a fleece topper over that - - still the latex offers a lot of ‘push back’ after a while, it’s a really fine sleeping bed. So with height limit I can’t duplicate - need to stay in the 10" arena.
Meanwhile I have had a few folks tell me that for sitting purposes the only way to go is springs. Hmmmmm - Naturepedic makes an interesting spring mattress. I gave up on springs ages ago - but there have been days when the carpet on my study floor felt good - so it’s a gamble.
Latex is heavy, if I use layers like I did on our bed then turning and airing is easy - but one single unit compresses into a fearful unknown that fits the size limit.
Another suggested wool mattress on latex strips - but I know the butt prints will be deep. There are some out there made of pre-compressed wool or of Felted wool.
I wonder about a 4" firm Tatami mattress, topped with a 2" Talalay topper, topped with wool - concerned about feeling the slats below? Or am I stuck with 6" core? These top out at 8" and leave little room for soft layer.
I’m only 5’2" - 125lbs and hubby is a whopping 6’ 135 - - both have need for joint support and muscle relief.
I think latex makes a great sleeping surface but it’s also very point elastic so when you are sitting and your weight is more concentrated in a smaller surface area you can sink in more with a latex core than you would with a firmer innerspring or polyfoam.
Just like with any mattress purchase, making sure that you use high quality materials (especially in the comfort layers) and your own personal preferences will play the biggest role but instead of testing for PPP (Posture and alignment, Pressure relief, and Personal preferences) you would be adding an additional “S” for sitting when you test mattresses … including the edges of the mattress.
If you will be doing more sitting than sleeping then I would make your choices a little bit firmer than I would if sleeping was the biggest role for the daybed. If you use a firmer and stiffer support system (such as an innerspring or polyfoam) then you can still use latex as the top few inches if you like the feel of sleeping (or sitting) on it.
So overall I would follow the same steps in the tutorial post as I would for buying any twin mattress except I would test for PPP + S
