Re: 3-season tent use

I agree with comment on venting. But most, practically all, modern shelters, including the Mt. Hardwear Skypoint, have vents built into the canopy.

The Skypoint (assuming correct name) is a little peculiar, however, because it is single-wall with impermiable fabric. If you block its lower vents with snow (a good idea) the upper vent will continue to provide plenty of air for breathing, but there could be additional frost and/or moisture build-up inside.

Mostly, this should be tolerable, but it could become a problem at times, especially given small dimensions of the tent. Worst case scenario might be puddles on the floor and a wet sleeping bag. I spent a terrible night in a K-Mart coated puptent during a snowstorm in weather around freezing.

For this reason, and others, (none concerning aspixiation) consider using a sleeping bag cover or lightweight bivy bag, especially with this tent, in winter.