who only by moving can balance

Can people, like, talk to me about the economics of doing a PhD part time? Because I think I need to at least consider doing this part-time rather than full-time at least temporarily (witness the last month, the majority of which I have spent asleep and incapable of sitting upright for more than about 5 minutes without noticeable impact on brain function), but I'm terrified because I have no idea which of ESA, Housing Benefit etc I'd be eligible for, and how much of my savings I'd go through before they arrived, and if they'd even make up enough of the shortfall.