A recent study has shown that losing sleep actually increases the levels of a chemical signal that enhances the pleasure of eating snack foods which leads to an increase of total calorie intake. The researchers say it may be part of a mechanism that encourages overeating which leads to weight gain. The effects of sleep loss on appetite were demonstrated when young, healthy sleep deprived participants were unable to resist cookies, candy and chips even though they had eaten a large meal only two hours before. If you want to avoid sleep deprivation, Ambien sleeping pills are now available at online pharmacies. What is Ambien? Ambien contains zolpidem, which is a sedative that is primarily used for trouble sleeping. It usually works within 15 minutes and it has a short half-life of 2 to 3 hours which means that it doesn’t stay in your bloodstream for a long time. Ambien also helps you stay asleep so that you experience fewer awakenings during the night. How should I take Ambien?