Nozovent (Medium) (2 Packs)

I have used the Novovent to for at least 25 years. I would not be able to sleep with using them. I have tried so many over the years, but always discard the other types &"go back to 'my old faithful, Nosovent!

They help me get off to sleep but always fall out during the night, very expensive for a little bit bit of plastic hence only three stars

Good product and supplier.......but why so expensive?