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 and the iKamper Skycamp 3.0 are evenly matched, rated 3.5 and 3.4. The Naturnest Sirius 1 Plus XL leads on value. The iKamper Skycamp 3.0 wins on weight and warranty. The Naturnest Sirius 1 Plus XL costs $1,556 less ($1,869 vs $3,425).
iKamper Skycamp 3.0
#12 in Hard shellFull review
For families who want a proven king size fold out hard shell at a lower price than the Skycamp 4.0 Quad, and can do without built in lights.
iKamper $3,425$3,425
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.
Which should you buy?
- Choose the Naturnest Sirius 1 Plus XL for value ($48.43 per sq ft of bed ($1,869, 38.6 sq ft) vs $77.15 per sq ft of bed ($3,425, 44.4 sq ft)).
- Choose the iKamper Skycamp 3.0 for weight (165 lb for 44.4 sq ft of bed (3.7 lb per sq ft) vs 174.2 lb for 38.6 sq ft of bed (4.5 lb per sq ft)) and warranty (2-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every hard shell tent; a clear win is highlighted. How we rank explains each one.
| Factor weight | Naturnest Sirius 1 Plus XL | iKamper Skycamp 3.0 |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 30% | 100 $48.43 per sq ft of bed ($1,869, 38.6 sq ft) | 69 $77.15 per sq ft of bed ($3,425, 44.4 sq ft) |
| Weight 20% | 42 174.2 lb for 38.6 sq ft of bed (4.5 lb per sq ft) | 65 165 lb for 44.4 sq ft of bed (3.7 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 | 35 2.5 in mattress, anti-condensation mat not stated |
| Warranty 15% | 0 1-year warranty | 25 2-year warranty |
Specifications
| Naturnest Sirius 1 Plus XL | iKamper Skycamp 3.0 | |
|---|---|---|
| Sleeping | ||
| Shell | Hard shell | Hard shell |
| Opens | Folds out | Folds out |
| Sleeps | 4 | 4 |
| Mattress | 69.9 x 79.5 in | 77.2 x 82.8 in |
| Bed area | 38.6 sq ft | 44.4 sq ft |
| Mattress thickness | 2 in | 2.5 in |
| Anti-condensation mat | Yes | - |
| Bedding stays inside | - | Yes |
| Weather | ||
| Fabric | 420D flame retardant waterproof Oxford | 300 gsm poly-cotton blackout canvas |
| Season rating | 4 season | 4 season |
| Annex | Optional | Optional |
| On the vehicle | ||
| Weight | 174.2 lb | 165 lb |
| Closed size | 74.8 x 51.6 x 12.4 in | 85.5 x 54.75 x 13.5 in |
| Open size | 80.7 x 74.8 x 46.9 in | - |
| Closed height | 12.4 in | 13.5 in |
| Ladder | - | 88.5 in |
| Setup time (maker) | - | 1 min |
| Warranty | 1 year | 2 years |