The leap from hell

My son is just cranky all day no matter what we do, he's in a constant battle of being tired and wanting to sleep but can't. At one point I just got fed up and let him nap on my boob for 3 hours during the day just so I could rest. I feel bad because he isn't getting much tummy time or play time but he's just to angry! That and my husband is gone on a hunting trip for two weeks so I have no help and am exhausted! How are other moms coping during the day? Obviously night time is still horrible but more manageable, are you guys getting any play time during the day??