King Medium-Firm Luxury - 15.5g coils we recommend using something like

we recommend using something like our Premium DIY Stretch Cover

Note #2: Top panel cosmetic design is subject to change

If you're building a California King mattress

while the stiff bottom provides reliable support

King Medium-Firm Luxury - 15.5g coils we recommend using something likeIf you're building a King mattress, this is the most popular combination: A split king 15. 5g 8" QuadCoil base (cheaper to ship, easier for you to handle), a king sized QuadMini (eliminating concerns of a seam gap from a split king), and our premium zippered stretch cover designed from the bottom up for DIY builds. The 3" QuadMini is an upgrade found in premium commercial mattresses, providing more movement isolation and responsiveness than using