Emergency spay yesterday on cat

I’d put in pet group but it rarely ever gets answers anymore. Our cat had to have an emergency spay yesterday due to infected uterus. Everything went great and we picked her up this evening - they gave us pain medicine and antibiotic.

We have a large dog cage with a clean litter box inside - she’s wobbly/loopy from pain meds so I had to take food/water out as it was everywhere.

She keeps trying to climb and get out of the cage. She won’t relax and I can see she’s so tired 😪 we cut a baby onesie to protect her belly so no more cone which seems to have calmed her a little bit but I feel so helpless. How can I help keep my poor baby calm and relaxed? She did eat a full can of wet food and some dry kibble when she got home so she should have a full belly.