I had the previous version of the Rab Cirrus, was a bit disappointed that they didn’t last, warm and cozy but I think they’re just basically designed for relatively infrequent use and I wore em too much? They didn’t fall apart or anything, they just got compressed and tired and baggy and lost a bunch of their warmth.
Nearly got another pair even so as they were lovely while they lasted but I ended up with the same amazon specials as Johndoh, had em a year now and they’re good as new and still very warm and comfy. Not quite as warm as the Rabs and they don’t have the same super soft sleeping bag feel, they’re a wee bit more shoe-ey.
(I know you said “not popping to the bin” but honestly being able to pop to the bin in your slippers is really good)