Things that go bump in the night...

The other night I was tossing and turning in bed and all of the sudden I heard the pitter patter of footsteps in the foyer?? I didn't hear anyone open a door or come down the steps..so I got up and ran into Weston!! I asked him what he was doing and he told me he was getting his blankey...he was headed to the laundry room (earlier in the day I had cleaned his blankey)..I told him it was clean and in his bed. I took him upstairs and put him back in bed, I layed next to him until I thought he was asleep..he was snoring but when I looked over his eyes were open! It was a weird night..I think he may have been sleep walking? Anyway since that night it has happened a couple more times.