It could be a book, is the first impression when you see the Cover Aura Sleep Cover of Kobo. I like that all right. Such a casing with Sleep Cover function are available for other tablets not - only the iPad, there are similar. Its use is very simple: "click in" the Kobo tablet and if you up or snaps shut the envelope the Kobo in the standby mode is set or "awakened" from this. This works very well and so I do not need to use this unfortunate slide switch of Kobo. The lighting conditions are saved when closing and applied again when opened. In addition, you can use this case as a useful erection aid, it then provides 3 different angles. The case protects from bumps and scratches, is well made and feels good - not quite as good as the rubberized back of Kobo.
A small drawback is that the weight again a little increases. The biggest drawback is the price - you felt so like the apples ..... but you buy it only once and yes because it also protects well.