I have used them in the past, but as Janie says they get very heavy, very fast. I once bought the larger bag (kind of a "floor model") with two handles and I could not possibly lift the thing, so I would not do that again. The smaller bags are okay if you want to store just one comforter or something like that, but all of the brands I have tried have been hard to zip closed, and they do lose air after a while.