Can I put a feather mattress topper on top of a memory foam mattress topper? I am trying to get the coveted ULTIMATE SOFT SLEEP. I have back problems and asthma, but I am not allergic to feathers. However, I don’t want a hard mattress, hence I thought of combining the two.
Opinions on which is better? Can I use both at the same time?
Thanks!
I think a foam mattress topper would be sufficient. Furthermore, because you have a bad back you need a firm mattress for support, super softness will not do you any good I am afraid 
However, if you really want to do this a good tip would be to put a duvet underneath the sheet (act as a topper) as this will make it softer but will still be supportive for your back (depending on your mattress). If you have any more questions let me know 
)
I think a foam mattress topper would be sufficient. Furthermore, because you have a bad back you need a firm mattress for support, super softness will not do you any good I am afraid
However, if you really want to do this a good tip would be to put a duvet underneath the sheet (act as a topper) as this will make it softer but will still be supportive for your back (depending on your mattress). If you have any more questions let me know 
)
References :
Worked with bed linen, duvets, etc for 4 years