My 8 week old DD co-sleeps with me and sleeps exceptionally well at night, usually in one stretch of 5-6 hours and then another of 2-3 hours. Which is obviously great! But during the day, unless she is sleeping in my arms, she will only nap for about 20-40 mins at a time :( I have tried putting her down in the cot asleep and awake, swaddled and not swaddled, with and without white noise, in darkness and not. It seems the only time she will take a proper long nap of 1hour or more is in my arms. Any advice? I love her so much but I really want to be able to put her down sometimes - and more importantly, I'm worried she isn't getting enough sleep :(