I went through this with DS1 between 2 and 7 months. My days were spent with a permanently sleep deprived baby who I spent ages trying to get to sleep, only for him to wake 30 minutes later, still tired and grumpy.
DS2 is now starting to do the same thing. Afetr 8 weeks of him sleeping brilliantly. He is now starting to cat nap. Although this time it seems worse. His awake time before he gets really grumpy is shorter. Only about 30 minutes after waking. And this time I have a toddler to contend with. I can jiggle him to sleep in a sling. But I basically spend all day doing this and its wearing me out. I don't know how I can handle another 5 months of it.
Any advice, or words of wisdom much appreciated???