Many buns do get sprains, you don’t do anything for it except antiinflammatory pain meds and cage rest for a week-ten days or so. The bare hock is of course troublesome, memory foam bath mats can help.

As for boredom, that’s probably the worst thing for him now. If he likes willow chew toys or apple sticks (from pesticide-free trees), they can offer some enrichment. Other than that, company is probably the best thing. Talk to him, pet him, be in the same room as him (you don’t have to interact all the time, of course, you can read a book or watch tv).

I’m sorry to hear about Snickers. Its the worst feeling in the world seeing a rabbit miserable.
I agree with Bam though-main thing is to keep him occupied. Treats and chews are really important for confined rabbits, as half the battle is keeping their emotional health maintained. Even something as simple as offering him new greens in his diet(not much so as not to cause tummy upset) stuff his hay into a toilet roll tube so it occupies him, place pellets in a ball that he has to push or somehow engage with, just to keep his little mind active

And like bam has said , just be around. I think cage rest is more -keep him quiet If you think he’ll stay quiet and not bounce around too much you can remove him from the cage to sit quietly for cuddles (if he’s a cuddly bun) or just for grooming- he might not always enjoy grooming but it is an interaction that breaks up his day.

When my boy was confined when sick I used to mist hay with apple juice and put it in a chewing block- he was a friend for apple juice, so he used to just pick the hay, but it kept him busy for a while at least !

If he possibly fell down the stairs, he could have dislocated something and then it popped back in. If this is the case, then it would be a soft tissue injury and the vet would not have been able to see or feel anything really. There isn’t much that can be done for soft tissue injuries except limiting their movement and giving pain meds.

I’m sorry to hear Snickers has hurt himself

I just wanted to add a couple of suggestions re: the sore hock. I don’t know what surface he’s kept on, but carpets can cause quite a lot of friction and make sore hocks worse. In addition to Bam’s suggestion of memory foam pads, another good thing for an indoor bun with sore hocks to be on is deep hay, and soft blankets (e.g. microfleece) are good too. If the hock starts to look inflamed, the vet can prescribe a steroid cream (called Isaderm in the UK – it’s licensed for dogs but is fine for buns too) to help it heal.

I’ve also had buns with leg injuries – they all got better within a week or two with just anti-inflammatories. I didn’t put them on cage rest, but did give them ramps to get up and down so they didn’t need to jump. Not that I’m suggesting to ignore your vets’ advice – just trying to reassure that he should improve soon, even if he won’t rest completely!

Best wishes to both of you.