The Naturnest Sirius 2 Aluminum roof top tent combines a folding sleeping platform with an aluminum hard shell. Rated by Naturnest for 2–3 people, this standard-size model includes a foam mattress, interior lights and a retractable ladder. It is the non-XL aluminum version, so its dimensions and sleeping capacity should not be confused with the larger Sirius 2 XL.
A folding rooftop sleeping space
When parked, the sleeping platform unfolds beyond the shell's closed footprint. Gas struts assist the X-frame as the top rises, while the ladder provides access and supports the extended floor. Naturnest lists an opening time of 15–30 seconds; allow additional time to position the ladder and complete the setup steps in the manual.
Rest, airflow and lighting
The included sleeping system pairs a high-density foam mattress with an anti-condensation layer underneath. Blackout treatment limits daylight entering through the fabric. For airflow, adjust either of the two windows or the skylight. After dark, the two interior LED strips provide light; USB and Anderson connections accept an external power source.
Construction for the campsite
The black aluminum shell pairs with an alloy frame. The published fabric specifications include 420D Oxford material, and the interior has an insulated headliner. These features do not remove the need to ventilate the tent, dry it after use or choose a suitable place to camp.
Shell and frame: Aluminum hard shell with an alloy frame.
Season designation: Naturnest lists this model for four-season use.
Sleeping equipment: Foam mattress approximately 2 inches thick and a separate anti-condensation mat.
Ventilation and access: Two windows plus a skylight; a single entrance.
Equipment supplied with the tent
The package includes the retractable ladder, mounting hardware, two awning support poles and two shoe bags. The mattress and underlying mat form the sleeping system. Interior equipment includes two LED strips, a USB interface and an Anderson power connection. Review the manual's component list when unpacking and report any missing parts before installation.
Frequently asked questions
Is this the four-person XL version?
No. This listing is for the standard Sirius 2 with an aluminum shell. Its published occupancy is 2–3 people. Use the packed and deployed measurements above when comparing it with another model.
What should I check on my rack before ordering?
The standard aluminum manual calls for two crossbars with a minimum spacing of 30 inches and adequate clearance for the mounting hardware. Check the vehicle and rack manufacturers' compatibility guidance and load ratings for your complete setup. The tent weighs 181.6 lb before any other carried equipment is considered; a vehicle shown in a photograph is not a fitment approval.
Can I remove the ladder after opening the tent?
Not while the extended floor is occupied. The ladder is a structural part of the deployed setup, not just a way to climb inside. Follow the manual for its position, locking procedure and ground contact before anyone enters.
Does the mattress need to come out for packing?
The supplied foam mattress and mat can remain inside. Remove bulky pillows and thick blankets before folding the platform, then follow the closure procedure. Do not force the shell shut over excess bedding.
Will the insulated interior prevent condensation?
No. Moisture can still collect inside, particularly in cold or humid conditions. Keep the openings available for airflow when appropriate and dry the tent thoroughly before storage. The mat and headliner are not a guarantee of a condensation-free night.
Can one person mount it on a vehicle?
The installation manual requires at least two people for mounting because of the tent's weight. Quick campsite opening is different from lifting and securing the tent to a rack. Arrange suitable help and check compatibility before attempting installation.
