Heat retention
Warranty
Trial
Quality/Durability
Loft
Offgassing
Best for XXX sleep position
Pregnancy Pillow
Filling Materials
Cover Materials
Cover Thread Count
Organic
Materials
First Layer microfiber polyfill
Second Layer microfiber polyfill
Third Layer microfiber polyfill
Fourth Layer microfiber polyfill
Fifth Layer Memory Foam
Sixth Layer Memory Foam
Pros
Highly customizable
Easy to adjust
Both polyfill and memory foam choices
Cons
Cover is not adaptive to fewer layers
May be a bit firm overall