I take one pair of Cool-max briefs. I wash them every night- do not need them for sleeping. Briefs are not essential and for those few occasions when I cannot dry the washed pair, I just do without. Cool-max works really well for me - quick drying, breathable and light too.

OM - I too have to get up at night as much as three times! This is what we get as a result of old age and birthing babies. It really is not bad - gives me a chance to look at the stars.