Zinus 12 Inch Support Plus Pocket Spring Hybrid Mattress with Euro Top / Extra Firm Feel / More Coils for Durable Support / Pocket Innersprings for Motion Isolation / Bed-in-a-Box, King 4.4 out of 5 stars 4,107 Zinus 12 Inch Cloud Memory Foam Mattress / Pressure Relieving / Plush Feel / Bed-in-a-Box / OEKO-TEX and CertiPUR-US Certified, King 4.4 out of 5 stars 13,710 CDN$593.25 Medium Euro Top Pocket Spring King Hybrid Mattress. Add to cart. 12 in. $493.30. This item: 12 in. Zinus 12 Inch Support Plus Pocket Spring Hybrid Mattress with Euro Top / Extra Firm Feel / More Coils for Durable Support / Pocket Innersprings for Motion Isolation / Bed-in-a-Box, King 4.4 out of 5 stars 3,324 by Zinus (74) ... Price: $ 493 30. Walker Edison Furniture Company 6-Drawer Caramel Mid ... (Eczema) and RLS, I cannot do hot mattresses. Medium Euro Top Pocket Spring King Hybrid Mattress.