B.S.
My son (will be 3 in June) has always been the same way. And his little sister likes to sleep late but he always ends up waking her up when he pulls out his toys are starts talking to us to wake us up! We've also tried covering the windows with dark blankets, putting him to bed later, no drinks right before bed so he doesn't wake up from wetting the bed, etc...but nothing works. The ONLY time he ever sleeps in, which is 7am in his case, is when he's not feeling well. Otherwise it's 6am sharp every day. He's up before my husband and I even get up! I truly think he's just an early riser and it's a built in mechanism that we cannot control :( lol