He's a cling-on

This boy has been so mommy obsessed for the last week or so. Last Tuesday I took him to school in the morning and picked him up in the afternoon. Our normal routine is I get him out of bed and leave him at my parents. My mom does school drop-off and pick-up. But my mom had jury duty, so Brendan and I had extra time together in the morning he seems to have gotten a mommy fix and can't get over it. Since then he's been telling me all the time how much he misses me, how much he loves me. He tells my mom when I'm at work that he misses me and wants to see me. He's been hanging all over me. And he's been fighting so hard going to sleep each night. He's told me he doesn't want to sleep because he'll miss me too much if he's asleep. He wants me to sleep in his bed or for me to sleep in his. I won't do it because he hardly sleeps on the occasions I have let him sleep in my bed or when I've lain down with him in his. The last few nights he told me he couldn't got to sleep because he had a "crick" in his neck. When that didn't get him out of sleeping he told me he was having trouble breathing and then did a creditable dramatization of labored breathing. Tonight, he told me his bed is perfect for not sleeping. After I said good night, he sang a song "I love Mommy so much, I love her, love her, love her. I love my Mommy", etc. Finally he started moaning "help, help, help". When I went in he said his blankie was stuck. I pulled it out from under him (he could have rolled off of it in half a second) and did all the good nights again while he hugged me and cuddled me and nuzzled me and wouldn't let go. I love the cuddling, and I love all the Brendan love and don't mind the cling-on behavior during the day, but knock wood except when he's sick or we go through the odd phase, he's always been a good sleeper. For a long time when he was still in his crib I could leave him there and he'd happily chat and play for an hour or more before he went to bed. He's up early enough, before 6:00 on weekends, and doesn't nap, so he needs all the sleep he can get, but I hate that he feels this way before bed and I really can't give him what he wants.