Timelapse - Exaggerated blinking
Import the footage into After Effects. Bring it into a comp and change the speed of the layer either with the speed control for the layer or with time remapping. Make sure the layer has Frame Blending turned on, and that it's on for your final render. Frame blending will blend all of the frames that make up a single frame, so if 20 minutes makes 10 seconds that's… er… 120 frames of original footage to make one frame of timelapse. This should mean that any quick motion in the original footage will blur away, and it should get rid of your blinks and breathing. If that's not enough you might want to try either the Time Warp at 100% speed with a long shutter time or even wide time effects to ad extra 'temporal blurring' to the footage.

Note that you'll have to render out the clips rather than using Dynamic Linking, because Premiere won't do the frame blends like AE does. Expect very slow renders.