Best Electric Motor or Hydraulic System for 100kg Adjustable Incline Bed Mechanism

We've looking to create a custom bed.Which is entered seated (like a sofa), and then the back-part is leaned back and the leg part is lifted up - by electrical means (no user force).
I'm making considerations as to which mechanism and engine to use for this.Especially considering that considerable force (max 50-100kg) will be placed in each end.
So we'll need mechanism that can withstand that force in addition to being moved by an electrical engine.

So I am looking for any advice or pointers, since this is a new area to learn about for myself.
I imagine someone out there probably have an instant response to this.

Thank you for your time.

- Sebastian Mogensen

There are a wide range of tilting seats and beds available on the market, have you had a look at any of them. They typically use 28V DC motors with lead screws. The lead screw mechanism provides plenty of mechanical advantage, but  they could get quite long if the tilting mechanism is not carefully designed ,cheers,Richard