They sell a wide selection of cases for the new Nook HD and I got one that works similar to my iPad case that when you close the case it places the device in sleep mode. Overall, I am very happy with my purchase and really love the new Nook HD. I love to read and it is nice to be able to take it every where as it is very portable due to its size. I have all my books or a magazine at the ready to read at any time, any where. If you are interested in checking this out, here is a link to view all the specs and info on it...http://www.barnesandnoble.com/p/nook-hd-barnes-noble/1110060426
Thanks for reading my review, hope you enjoyed it!