Naturnest Sirius 1 Plus XL
#11 in Hard shellFull review
For families of four who want a wide hard shell bed with climate control options for well under name brand prices.
Amazon $1,869$1,869
The Naturnest Sirius 1 Plus XL rates 3.5 among hard shell tents; the CVT Pioneer Mt. Rainier rates 3.4 among soft shell ones. The Naturnest Sirius 1 Plus XL costs $530 less ($1,869 vs $2,399).
CVT Pioneer Mt. Rainier
#12 in Soft shellFull review
A three person soft shell with a 71 x 94 in floor and an optional annex, for small families on longer trips. At 198 lb it needs a strong roof rack.
CVT $2,399$2,399
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different type classes (hard shell and soft shell), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Naturnest Sirius 1 Plus XL | CVT Pioneer Mt. Rainier |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 30% | 100 $48.43 per sq ft of bed ($1,869, 38.6 sq ft) | 61 $51.76 per sq ft of bed ($2,399, 46.3 sq ft) |
| Weight 20% | 42 174.2 lb for 38.6 sq ft of bed (4.5 lb per sq ft) | 49 198 lb for 46.3 sq ft of bed (4.3 lb per sq ft) |
| Weather 20% | 62 waterproof rating not published, 4 season | 62 waterproof rating not published, 4 season |
| Comfort 15% | 32 2 in mattress, anti-condensation mat | 57 3 in mattress, anti-condensation mat not stated, 2 skylights |
| Warranty 15% | 0 1-year warranty | 25 2-year warranty |
Specifications
| Naturnest Sirius 1 Plus XL | CVT Pioneer Mt. Rainier | |
|---|---|---|
| Sleeping | ||
| Shell | Hard shell | Soft shell |
| Opens | Folds out | Folds out |
| Sleeps | 4 | 3 |
| Mattress | 69.9 x 79.5 in | 71 x 94 in |
| Bed area | 38.6 sq ft | 46.3 sq ft |
| Mattress thickness | 2 in | 3 in |
| Anti-condensation mat | Yes | - |
| Skylights | - | 2 |
| Built-in lights | - | No |
| Weather | ||
| Fabric | 420D flame retardant waterproof Oxford | 320G ripstop canvas |
| Season rating | 4 season | 4 season |
| Annex | Optional | Optional |
| On the vehicle | ||
| Weight | 174.2 lb | 198 lb |
| Closed size | 74.8 x 51.6 x 12.4 in | - |
| Open size | 80.7 x 74.8 x 46.9 in | 125 x 71.5 x 49 in |
| Closed height | 12.4 in | - |
| Setup time (maker) | - | 8 min |
| Warranty | 1 year | 2 years |
| Released | - | 2025-04 |