[QUAD-L] knee pillow

[Derrick]

Does anyone use a knee pillow to keep knees from touching while keeping 
hip aligned when you sleep on yourside?
Allgero Medical has one that unfolds to keep feet from touching bed. 
Then there is a dozen on Amazon.

I wonder if the pillows that unfold for feet slide apart or come undone.
So, is best to get a pillow for each purpose?
Thanks,
Derrick
i got hip pain and need to keep hip aligned while sleeping on side. I 
sleep on back 97% of time but I would do more if I can keep hip from not 
hurting.