Just wanted to add- we have the same issue! I think with us the trigger was changing her over to the toddler bed because she has the freedom to get out and walk around. She used to get up around 7 or so, but I would hear her talk herself back to sleep (or just stay down and relax for at least another 1 to 2 hours). Now, 6:30, 7, if I'm lucky 7:30 rolls around and up she goes. I too tried putting her down earlier, later, less nap, more nap...nothing works! She gets up same time every day. And my fear with cutting nap time is making sure she gets enough sleep, which she really isn't anyway because she gets up so darn early and she is rubbing her eyes by 10 am! I try to get her to get into bed with me, try to get her back into her own bed, but she's wide eyed and bushy tailed. I think I will try giving her some sort of snack before bed, as suggested below. If you do find something that works, please let me know!!!