I've been searching for the right comfort with support since I got rid of an old favorite mattress. I finally found it!!
This feather bed topper with my purple mattress is the most comfortable combination, just like my old beloved bed. The topper has fluffy feathers ontop with supportive filling on the bottom. Its a magic combination. Best sleep in years. 
Topper and purple mattress are not hot at all and I always sleep hot.