It doesn't hurt to sleep with a little bend in the knee and it will be much more comfortable than trying to keep it straight. It was months before I could sleep on my back without a Lounge Doctor type leg lift. When I got tired of sleeping on my back I'd slip off of the LD and lay with a pillow between my legs on my side for an hour or so. That would soon get uncomfortable, so back on my back and the LD I'd go.
Your extension is already 0 so you have nothing to worry about!
Your extension is already 0 so you have nothing to worry about!
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