NEMO Dragonfly OSMO 1P
Floor 88 × 35/32 in, 40 in peak, vestibules 8.6 sq ft. Drawn to scale from the maker's listing; the grid is 6 in.
- A regular padFits
- A wide padFits
- A long wide padFits
Which pads fit
An inch or more to every wall. Sit-up room +4 in.
An inch or more to every wall. Sit-up room +4 in.
An inch or more to every wall. Sit-up room +4 in.
Pads side by side at their listed sizes, with the average man (5 ft 9 in) lying on each. "Tight" is under an inch to a wall or the sloping roof: the fabric gives, but a wet wall wets what touches it. Open it in TentCheck to try your own pads, cots and gear, or read how fits are checked.
Headroom
| Roof overhead | Floor | Share |
|---|---|---|
| Anywhere | 20.5 sq ft | 100% |
| 12 in or more | 19.5 sq ft | 95% |
| 24 in or more | 15.3 sq ft | 75% |
| 36 in or more | 6.3 sq ft | 31% |
From the modeled roof, not measured. About 36 in is where an average adult sits up straight on a pad: a 35 in sitting height, plus the pad.
The numbers
| Floor (listed) | 88 × 35/32 in, 20.5 sq ft |
|---|---|
| Peak | 40 in (3 ft 4 in) |
| Vestibules | 8.6 sq ft |
| Sleeps (maker) | 1 |
| Packed weight | 44 oz (2 lb 12 oz) |
| Packed volume | 5.1 L |
| Regular pads that fit | 1 with an inch to every wall |
| Sit-up room on a pad, at the peak | +4 in for 35 in sitting height |
| Pitched footprint | 88 × 60.6 in (7 ft 4 in × 5 ft 1 in), floor and vestibules |
| Groundsheet to cut | About 86 × 33/30 in |
On the campsite
Floor and vestibules together cover 88 × 60.6 in. On a square tent pad, as campgrounds list them: 8 × 8 ft: fits; 10 × 10 ft: fits; 12 × 12 ft: fits. Guylines and stakes need more room around that.
For a groundsheet, cut it a little smaller than the floor, about 2 in, so rain running off the fly doesn't collect on it and run under the tent: about 86 × 33/30 in.
Notes
Floor 88 × 35/32 in, 40 in peak, one side door with an 8.6 ft² vestibule (REI; see the open question).
Sources
- NEMO Equipment: Dragonfly OSMO Backpacking Tent (1-Person) Checked 2026-10-22
- REI: NEMO Dragonfly OSMO 1P Ultralight Backpacking Tent Checked 2026-10-22
Roof shapes are modeled from the floor, the peak and how the poles hold the walls, not measured. Treat a result within an inch or two as too close to call.