cuddles when you sleep

When I stay the night at my boyfriends we obviously sleep in the same bed. I use to always wake up to him holding me or he would hold me till he fell asleep. He doesn't really do that anymore. I'm trying not to take it personal cause I know people need their space when they sleep but has anyone else had this happen. Should I be worried. I was so use to him holding me that I kinda feel alone when I go to bed even though he's right next me me when I stay over