Piggylove82
Adult Guinea Pig
The wool stuff is more for hamsters, gerbils. I used to use it when I had hamsters. Unfortunately a lot of pet supply manufacturers seem to think guinea pigs (being rodents) can have the same things as hamsters, gerbils, mice...I've never seen that wool stuff before. I don't think it would be very comfortable for them, getting caught in their hair and nails and stuck to food, whether or not it is bad for them health wise.
One fleecy tunnel is good, more fleecy things would be even better, especially with boars. My piggies all love their beds and snuggle sacks