#### dumdumheretx

##### New member

- Joined
- Jun 19, 2020

- Messages
- 2

I was trying to understand in simple terms what happens if you place a layer of pocket springs on top of an identical layer as used in a mattress. I have tried searching the answer but the formulas are beyond me trying to relate to the real world what will happen. I understand the springs would be considered in series. My understanding is that a force applied from above will be transferred equally to the two springs below. Does this mean is say a 10 inch high spring compressed for the same weight 3 inches, that same weight now means the compression of amount you will sink will be doubled to 6 inches? The logic in my head says surely the force must still result in a 3 inches of compression shared at 1.5 inches for each spring as the springs can now be considered a single spring? but when i look at calculations this appears to be what happens when they are in parallel rather than series?

Can anyone help me apply the maths of springs to what i would observe in a mattress when doubling the spring layers with springs stacked. The only other thibng i seemed to gleam from the maths is that the now 20 inch spring would have more side to side movement or in other words be more flimsy due to increased deflection?