Week 3 of no sleep..

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I feel like my 3 week old does not sleep at night.. I’m awake with him from about 1:00-5:30 and my husband does the rest. He naps fine during the day, and we’ve been trying to keep him up more.. what do your babies sleep in? Plain old bassinet is not doing it, and swaddling is impossible because he hates his arms being held in.