My 2 boars are in for winter nights but out in their Pighouse every day. (I've written about The Pighouse loads of times - it's my DC old wooden playhouse so all snuggly, airy, protected and with a heater - spoiled piggies)
The first year we kept GP1 and GP2 in a 2'x4' cage at night in the dining room. They were pains in the buttocks (well TBF the cage got in the way) but they were fighty and arsey, we had to put a divide in and they woke at 6am to riot about the lack of food .
Next winter we put them in the small bedroom,, no divide, loads of hay and a cover over. They were fine, went to sleep, ate hay, only
was GP2 noisily eating cardboard at 3am.
This winter we have no GP2
but we have the mahoosive teenage GP3. It became clear very early on that he would not be fobbed off with a 2'x4' .
So we have a tarpaulin + cardboard + paper and a 3'x5# with-a-bit-extra pen (metal panels).
Though I have to say , for my boys they'd go stir-crazy indoors. Even with a hay trug, boxes, tunnel, this morning they were sitting judgily looking at the empty bowl (I DO feed them
)
Out into the clean Pighouse, they were "Waaayhay" as they tunnelled their way through a huge pile of fresh hay.
I cannot control the random hay indoors, it gets everywhere. I take the tarpaulin out every week and shake it. Newspaper lifted daily to remove the soiled ones.
And those Puppy Pads - provided they can't get to chew them- are brilliant for soaking up puddles. Though I need to anticipate where their respective Pee Corner will be.
I hoover up random stray droppings but sweep the hay.