Last night was yoga night. At the end of yoga there is a time of relaxation in a pose called corpse pose. Now, pretty much all you have to do is lay there and relax. The teacher was walking us through the pose which involves laying with your back straight on the ground and letting your mind go. My lower back wouldn’t get on the ground without a lot of effort, which makes it terribly difficult to relax. I decided that I would let her know after class and see what she said. Well apparently for the last 30 some years I have been curving my lower back in a way that now feels right, but is really all wrong. And all this time I was thinking it was all the padding I have in the rear that was the problem Oy. It is fixable and yoga will help.
iamlizbeth.com 
Yoga is the best! Even after 6 years of pilates, I get the best workout from my yoga class.
PS: I have heard of people that fall asleep (and snore) while in “corpse” pose.