Geodomes — dome-shaped rooms with clear ceilings above the bed — are having a moment as dark sky tourism grows. The idea is simple: skip the hotel ceiling, watch the stars from under the covers, and still keep the king-sized bed, climate control and Wi-Fi. A round-up of the best options in the US shows how far the trend has spread, and how different the experiences can be.

For aurora hunters, Borealis Basecamp outside Fairbanks, Alaska is the headline act. Its igloos have 12-foot clear ceilings with 360-degree views, plus a full bathroom, beverage bar and Wi-Fi — and the resort will wake you up if the Northern Lights appear. Add-ons range from sled dog rides and reindeer walks to aurora photography tours and Arctic Circle drives.

In the desert, Big Bend, Texas is a serious draw: the region is the world's largest Dark Sky Certified area. StarStruck Glamping sits 3 miles off the main road on 80 private acres, with just four domes, each with a telescope, outdoor kitchen, fire pit and full bathroom. Rates run roughly $250 to $600. Note the quirks: bring your own drinking water, and switch off the AC when you head out, since the domes run on solar power.

Joshua Tree, California — a certified International Dark Sky Park — has two strong picks. Quail Wash Retreat's Geodesic Star Dome has 20-foot ceilings, a king bed, sauna, hot tub, cold plunge and a Vespera 3 smart telescope for astrophotography, at $600-$960 a night. The Kosmic Tortoise, near the Twentynine Palms park entrance, is far gentler on the wallet at $165-$239, with just two solar-powered domes and owners on site.

Elsewhere, Clear Sky Resorts operates themed domes near both the Grand Canyon and Bryce Canyon (from about $296 a night), with live music, telescope tours and free campfire s'mores. White Camel in Kanab, Utah makes a handy base for Zion, Bryce and the Grand Canyon all within about 90 minutes. Glamping Collective in the Blue Ridge Mountains near Asheville, North Carolina offers 23-foot domes with private hot tubs, 15 miles of hiking trails and a summit view stretching 40 miles. Colorado's Pagosa River Domes, the state's first geodesic dome resort, line the banks of the San Juan River in Pagosa Springs.

Why it matters: these stays turn stargazing from a ten-minute look upwards into the whole point of the trip, without going full tent-and-sleeping-bag. Prices span budget-friendly (under $200) to luxury (nearly $1,000 a night), so there's an entry point for most travellers — just book early, since dark sky destinations sell out fast around new moon weekends and aurora season.