$1,780 to spend the night in a ‘cocoon’? Hotels are betting on sleep tourism.

Pace of Hilton offers rooms divided into three zones, including “an enveloping sleeping environment” with a Sealy accelerate temperature-controlled mattress and sound-absorbing acoustics; lights that dim at sunset; and, in some rooms, Peloton bikes, for people considering exercising their Ambien.

At the Conrad Baliguests can book a private 60-minute session TO WAVE session at the spa (from 1,500,000 rupiah, or about $95), which involves lying in a swinging, air-wrapped hammock that looks a lot like a real cocoon. The rocking is meant to simulate floating on a cloud or being in the womb.

At the Beaumont in London, travelers can stay in perhaps the coziest room of all, simply called: ROOM (£1,402 per night, or about $1,780), a 70-square-metre suite in a three-storey stainless steel sculpture of a crouching man at the hotel entrance. It lacks a TV, a telephone and even wall art. The goal of British sculptor Antony Gormley, who designed ROOM, is for guests to “achieve a meditative silence, lose the sense of their body in the darkness and allow the mind to expand.”

You become very sleepy

This month, in celebration of the NSF’s Sleep Awareness Week (March 10 to 16), the Mandarin Oriental is partnering with the hypnotherapist Malminder Gill, also known as the sleep concierge, at the Hyde Park building in London. (After Hyde Park, the service is available on the Mandarin Oriental in Mayfair, which opens this spring, followed by pop-ups across Europe, New York and other destinations later this year.) From £500, guests can meet Ms Gill in the spa for a sleep consultation and session tailored to their specific sleep concerns. with Ms Gill even recommending optimal meal times and order of food intake. There will also be an option for a private bedside session, where, if all goes well, guests will fall asleep.

“I’m walking on my toes,” Mrs. Gill said. “I know this sounds very bizarre.”

The Royal Sonesta Benjamin New York has a similar program called Rest & Renew, run by Rebecca Robbins, co-author of “Sleep for Success! Everything you need to know about sleep but are too tired to ask.”