Your welcome, Meemur. It's not easy for me to describe how, but I manage to sleep on either side. My chair has a position lock, that helps, too. Of course unlike the super-gymnastic hammock sleepers who can somehow even manage to sleep on their tummies, the extra large zero gravs don't allow that. Being hefty-mom-sized, it's surprisingly comfy even so. LOL. Not for everyone but just another option.