“…Sleep is a very vulnerable state that can be affected by a variety of medical, physiological, environmental and psychological factors. Every condition leading to physical discomfort or pain (including reflux, milk allergy, atopic dermatitis, headaches and even simple colds) is likely to adversely affect sleep (Brockmann, Bertrand, & Castro-Rodriguez, 2014;Camfferman, Kennedy, Gold, Simpson, & Lushington, 2013;Chang et al, 2014;Guidetti, Dosi, & Bruni, 2014;Machado et al, 2013). For the main classification of sleep disorders see Table 2.…”