Good sleep hygiene is vital and its continued deprivation could have lethal consequences. The vagina starts during the R.E.M.
phase, producing changes, such as capillary vasocongestion and a very high increase in blood volume, during this phase of deep sleep. A chronic deficit of nocturnal and quality sleep negatively affects the vaginal excitatory response. Insomnia, for example, is often a risk factor for developing sexual dysfunctions. So do not hesitate: take care of your rest and improve your sex life!