Aiyoh, one hour of sleep in 24 hours is quite a lot lah, at one month, babies usually need quite a bit more rest than that, so I'd suggest bringing this up with your paediatrician or nurse to make sure everything is okay, especially to rule out any discomfort or feeding issues. A few of my mum friends had babies who were unsettled like this and turned out ada reflux or latch problems, so better to check sooner rather than later lah!