L1-SLP-02
Therm-a-Rest
Therm-a-Rest NeoAir XTherm NXT
An R-7.3 inflatable pad. Overkill for July, and the reason people sleep through a February field session instead of enduring it.
L1-SLP-02 sets a minimum R-value of 3 for cool-weather sessions and 5 for winter. Ground conduction, not air temperature, is what actually ends a cold night, and it is the single most common gear mistake we see on intake. R-7.3 clears the winter threshold with margin for a student who does not yet know how to site a shelter well.