Yellow rubber gloves, the kitchen type, pick up cat hair very well. I tried putting 2 gloves in the dryer with a hairy pillowcase, but minimal success, possibly because the hair wipes off the glove very easily. I sometimes stroke the cat while wearing the rubber glove. They like it!

I also have a rough new sheet that grabs cat hair and I often put that in the dryer with a hairy item. It picks up quite a bit, but getting the hair off the sheet is difficult.

If I place an old towel or throw at the foot of the bed and another near the top, the cats gravitate to them, which helps.