Using cloth nappies at night can take a bit more thought and effort but its definitely doable! The main thing is that you need more absorbency compared with a day nappy and also need to ensure that adding extra bulk does not compromise the fit of the nappy. You will find most of the nappies in this category are a fitted style that needs to be used with a cover. This is because fitteds usually work well for nights as they are an easier style to customise with boosters and extra inserts.
For heavier wetters and for reliability the BBH night nappy is great. Average wetters may be fine with any of the other fitted nappies and smaller boosters added as needed. The Pop-in nappy plus night booster would suit for a light to average wetter. The Pop-in night booster can also be used with other brands of nappy.