Those books always help me when i'm feeling tired and over it. I'm still getting up about 3 times a night. Sometimes 2 but other times 4. Just reading back over a bit of 'the science of parenting' is enough for me to know my sleep deprivation is worth it. My first DD sleeps 12 hours solid and never wakes up, looking forward to when #2 is doing that! But take comfort in the fact you are not alone. I try to co-sleep but we both seem to get less sleep. Guess it's not for everyone, i wish it was!