Well, here are a few suggestions that may work for you:
Try wearing your baby in a sling. Great for baby, and you still get work done!
Get a swaddler. Someone gave me a Kiddopotomus swaddler for my 3rd, and I wasn't really appreciative. I mean, my other 2 had slept fine w/o a swaddler...we'd just used blankets to swaddle them. But this child, OH MY! She would sleep around the clock the way you're describing your baby's daytime sleep. I finally used the swaddler and I swear, it was like magic! Naptime & nighttime were blissful. I'm sure she enjoyed actually sleeping, too. ;o)
Try a swing. Just get a battery-powered one, b/c the crank ones make noise that can startle (and awaken) a newborn. They always seem to need re-cranking just as the baby is getting drowsy, too. ;o)
Best wishes!