Start your week smart: How to sleep better, Pope Francis discharged, Pentagon leak investigation, New Mexico mass shooting

CNN’s 5 Things Sunday brings you all the news you need to start your week smart.

More Americans are cutting back on snacks like chips, pretzels and cookies — but not for health reasons. Why then? Rising prices. Over the last four years, for example, the price of chips has surged by nearly 30%. That sharp increase is driving many consumers to cut back on non-essentials like snack foods, according to market research firm NIQ. Here’s what else you need to know to Start Your Week Smart. Whether you’re a night owl or an early bird, few things wreak havoc on your ability to function in everyday life more than poor sleep. A lack of quality sleep can have important impacts on your overall health as well. Chronic insomnia — an inability to fall or stay asleep or waking up much earlier than desired — could lead to serious issues, including heart attacks and stroke. If you’re constantly tired, that could be a sign of an underlying health condition such as anemia, chronic fatigue syndrome or a rare blood disorder. Your job could be making things worse. Sedentary work has been linked to a 37% higher risk of insomnia-like symptoms.