Hello all. I have been experimenting with determining the ideal seated-in-bed handsfree kiiroo keon setup and have found a setup that genuinely solved all of the issues that I had encountered previously:

vertical stability
horizontal stability
angle stability
depth stability (all others listed are self-explanatory, but this one was particularly difficult as the movement of the kiiroo keon downwards would typically lead to some upward displacement of the kiiroo keon which ends up preventing 100% depth, regardless of the amount of lube/friction in my experience)
comfort of setup/body posture
ease/adjustment mobility

Although each of those sound relatively straightforward, I am sure that anyone who has tried to "simply brace the kiiroo keon with a pillow" has realized it isnt as successful as it sounds, for many if not all of the reasons above.

IMAGE OF SETUP: https://gyazo.com/21e6299b1e30c41168bab0022d960182

I have linked examples of the items below just for convenience, even though they are easy to find as well.

Knee pillow (with substantial height and symmetric width on both ends): https://www.amazon.com/gp/product/B01A8TPWS2/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
Velcro adhesive roll: https://www.amazon.com/gp/product/B00FQ937NM/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
Fleshlight Turbo sleeve: this is just a side note, I highly highly recommend the Fleshlight Turbo sleeve within the kiiroo stroker case (it fits perfectly fine given the malleability of the fleshlight sleeve) https://www.fleshlight.com/products/turbo. It is the best sleeve that I have used with regards to actual pleasure (where a tighter anal sleeve/stamina sleeve just simply have come nowhere even close to it for me)

Velcro instructions: Adhere strips of hook loop superiorly on the front of the kiiroo keon (superior placement is so that it is high enough that it won't scratch your abdomen). This also allows the carpet-esque velco side to be the working side/easy on your hands. Keep the back adhesive protection on this working side to keep it from becoming sticky.

Use instructions: When you slide your legs under this setup, it allows you to pin the bottom half of the knee pillow under your thigh without any additional effort/bracing. The kiiroo keon then sits a little higher than it appears in the image I attached (due to your legs resting underneath). Then tighten the setup by adjusting the velcro around the top of the neck of the knee pillow. The setup becomes secured very very well in my experience, and the slight angle created (about 10-20degrees off of vertical) in this position has felt very natural.

Hopefully this is helpful for someone, figured I would share my solution because I personally had to play with a bunch of different approaches but really found immediate success with this. Lmk if anyone has any questions.

IMAGE OF SETUP: https://gyazo.com/21e6299b1e30c41168bab0022d960182