Good try, but also if you can arrive at the chains, well, I cna't see any lock to be removed by mouth, so what the reason why you are trying? Anyway the look of the new boots is really awesome, thank you for sharing.
But if she rolls over onto her back and sits up, she might be able to wiggle backwards to that futon and then arch her back enough to wriggle up onto it - and from there she might be able to inch onto something higher, or maybe hook her chin on a chair-back and pull herself back up to her feet.
Somewhere she has a Significant Other that keeps putting her in this gear - and all we know about the SO is that he/she can manipulate small locks, zippers, laces, and snaps. Are we ever going to meet him/her?