I get AT LEAST 8 hours of slepe, even with my 7 week old. It is interrupted 2-3 times, but I breastfeed and co-sleep, so we both sleep through it, so I am always well rested. :)
Most nights I get around 5-6. I sometimes have spells of bad insomnia where I hardly sleep at all. =/ I would love to get 8 hours of sleep a night. I never feel well rested. lol