Our 3 month old has trouble settling into sleep during the day. We found loud music witha good beat stops him crying immediately and then puts him to sleep. He won't listen to classical lullabies, it has to be U2, REM, etc. And it has to be turned up (I think he likes to feel the beat). We have to sway around with him but it stops him crying. It works everytime he's tired. He only sleeps for short bursts though during the day. The best I can get out of him is a 3 hour sleep (rare) but he has to be lying on me. Mostly its 30 mins - 1 hour here and there. And some days, not much sleep at all. I think it gets easier - so I'm told. Don't feel guilty at all about calling your husband. It's extremely hard to be with a screaming baby for any length of time and sleep deprivation is a known means of torture in some countries. I've definitely lost the plot and just cried all day sometimes due to lack of sleep. I try to take one day at a time and sometimes 1 hour at a time. Make sure you get some time to yourself to regroup - it will do you the world of good.