Waitrose Nature Babycare Nappies

Well...last minute purchase before Christmas on a two for £10 deal. Thought 'never tried Waitrose brand and all that'. They were mostly fine except we've had two overnight leaks: one when the whole bed, DS and all his clothes were soaked, and one when just his pj trews and a bit of bed were wet, not what I would've expected from Waitrose. He doesn't usally leak with either Sainsbury's Explore or Pampers, so not very good really. Also they seem to be really big, I know a lot of the supermarket brands tend to be larger but it looked more like it should be used as a flak jacket, enormous.