My boyfriend touches me in my sleep, is this weird?

One time I was falling asleep but not quite asleep yet, and I felt my boyfriend touching me, I went along with it and pretended I was asleep (I'm a heavy sleeper) he touched my a$$, chest, and other areas. After seeing what he was doing I "woke up" and acted like nothing happened to see if he would tell me and he didn't really say anything. Is this a normal thing guys do? Am I overreacting or is it kinda weird? It made me kinda uncomfortable.
My boyfriend touches me in my sleep, is this weird?
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