If you're working from home, there's a good chance you're doing so from a spare bedroom, as they're convenient places to double as an office.

If you have a laptop and a split keyboard, all you need to add for a pretty comfortable lying-down workstation is a lap desk with decent clearance.

I found this one worked well during surgery recovery:

https://www.amazon.com/gp/aw/d/B091CB1RDB