I am also blessed with a dependable paddling partner, my husband.  Unfortunately for me, he has sleep apnea.  He sleeps at home with a breathing machine and it is a big help for him, as well as for me, to get a good night's sleep.

In a tent in the wilderness his snoring could keep the critters awake for miles around.  While it makes me a bit uncomfortable to use the ear plugs (I would never hear a marauding bear, and would probably miss the footsteps of the moose who comes to breakfast), it is necessary.  You can't paddle and portage with no sleep!

But I cannot imagine canoe tripping with anyone else!   :)