If you like a very firm waterbed mattress with very good features then this mattress might be for you. 3 Full Layers of Fiber rests on top of the Lumbar and edge support systems with one layer of fiber resting on the bottom. To give a uniform feel a layer of closed cell foam is located right under the first fiber layer. The Lumbar and Side support systems are designed in an H pattern with the lumbar area covers the part of the mattress between your head and hips. The side supports run the full length of the mattress on each side. Both are made up of extra large convoluted foam fingers to offer the maximum amount of support in comparison to mattresses that offer lumbar support that consists of fiber.

*PLEASE NOTE: This mattress plus the 700 differs from the 9876 Model because it offers the S-Class Features such as the Molded Impression top vinyl and Thicker Vinyl.

Most customers who choose this type of mattress would say "I want a waterbed mattress that was almost the firmness of a regular mattress" or "I want a waterbed mattress that I can sit on and still have my feet touching the floor" or "I want a waterbed mattress that feels like gel or mud".

REINFORCED CORNERS Shown here are the actual reinforced corners that cap off each of the four corners on the waterbed mattress. Reinforced corners are nice and big to cover a large surface which alleviates the stress caused at the corner seams of a waterbed mattress, and thicker, to protect the corners from the metal brackets of the wood frame. The black inserts here are the linen lock corners that are inserted permanently inside of the corners. Exposed all of the time, they grip the linens when you wrap the sheets around the corners. This is a great feature for people who always have their sheets pop off the mattress.

EDGE SUPPORT Edge Support runs down the sides of the mattress, allows for easy entry and exit from the waterbed mattress, and keeps you from rolling into the frame (frame bite). LUMBAR SUPPORT Running between your shoulders and hips, the Lumbar Support keeps you from hammocking in the waterbed mattress, rolling into your partner, being higher or lower than your partner. It makes it easy to sit up in your waterbed.