You are going to sleep... A LOT. That's normal for several WEEKS after surgery, not days but WEEKS! It was 4 weeks before I could go more than 4 hours without a nap. That is normal. It has nothing to do with not getting up or moving around enough (has everything to do with how much anesthesia you had!) Have a heating pad on hand and within reach all the time! You are given pain meds for pain. When you are in pain, take them! When you first get home from the hospital, take them BEFORE you're in pain. Use a dry erase board or notebook to keep track (let your hubby keep track and give them to you because days, hours, am/pm it gets confusing.) For a solid two weeks post-op, you are useless, completely useless, minus some medication induced hilarity. So as far as cooking, laundry, cleaning, even in-depth conversation goes, don't expect help from you. The first day or two at home, he will likely have to help you with EVERYTHING-standing, sitting, bathing, getting comfortable, etc. I was able to use the bathroom by myself.
Best suggestion for hubby---bring help! A mom, a friend, a cousin, a neighbor, etc. just to give him a little relief from you so that he doesn't start feeling like you're just whining.