On the impact that exposure to electronic devices like tablets, smartphones, laptops, etc in the bedroom has on sleep:
http://www.cnn.com/2015/01/05/living/small-screens-harm-childrens-sleep/index.html
http://www.reuters.com/article/2015/01/05/us-electronics-pediatrics-sleep-idUSKBN0KE1SI20150105
