For most days for the past week (about 6/7), my little guy has woken anywhere from 30-45 minutes into his nap, and started crying at a distressed level. We can go in, rub his back, shush, and within 5-20 minutes he'll go back to sleep and get another 45 minutes to another hour and a half (okay, just one day. . . it was great!). He clearly wants more sleep as he's not trying to get up while he's crying, just crying.
I'm not sure what's going on. He's still got an eye tooth coming through, so it may be that's bothering him. I don't think he's going down overtired as he's pretty consistently getting 12 hours of sleep at night (approx 7 PM to 7 AM), awake 5.5 to 6 hours before nap, and then about 4 more before bed. Naps total anywhere from 1 hour 15 mins to 2 hours, very extremely rarely longer.
His night sleep hasn't been affected. I don't want to start a habit of having to "help" him back to sleep if it's not needed, but the crying seems to get to the point where I know he'll get himself past the point of going back to sleep if I don't intervene. Anyone had anything similar? Any advice on what to watch for?
Thanks in advance.