I keep falling asleep while I'm feeding my son! Last night it happened three times - he actually spent 90% of the night sleeping in my arms as I slept. Now I'm concerned his back or neck will be effected because I'm sure he wasn't perfectly supported the entire time. Every time I say I won't do it again but it just keeps happening. I'm going to start sitting up on the couch for all night feedings now. How can I stop feeling guilty? What are the chances that last night could cause long term issues?