[Sirtel]

There is no right or wrong way to hold an ereader. Everyone holds it as it suits them best. Some like having covers/cases, others use popsockets or other similar solutions, some folks don't use anything. Personally I don't use anything, I find my ereaders are most comfortable for me to hold without a cover or anything else. YMMV.

Edit: I don't read lying down, ever. The reading position also makes a difference in how you hold your device. Sitting, lying on your side or on your back and so on.