Ahead of the curve, the Swissôtel Berlin began offering its DeepSleep Package in 2012. For an extra fee, guests of the Swissôtel Berlin can go on a sensorial journey to enhance energy and sleep effectiveness. Travel Pulse reports that the hotel partnered with sleep consultant Dr. Michael Feld to create this program as a part of the Chrono-Health Concept. Some steps of the program include:

· Bright light session: guests sit for 30 minutes in front of a 10,000 lux lamp, meant to reset the body's internal clock. Another option is to use a portable light headset designed by Valkee, which shoots beams of light into the head through the ears (yes, really).
· Aromatherapy: reenergize with lemongrass essences and citrus oils.
· Thin air breathing session: spend 30 minutes breathing in specially-generated air meant to mimic the thinness of mountain air. According once again to Travel Pulse, the inhalation of thin air releases nitrogen monoxide into the bloodstream, which widens the blood vessels. The benefit of this is to lower blood pressure, which can in lead to relaxation and deeper sleep.

Image via @swissotelsresorts