Occas. my 2yo suddenly wakes up crying and sitting up.eyes still closed.goes on about 5-25 minutes- seems like he's not there.goes back to sleep.help?

Poor sleep patterns: Your description is classical for a night terror,a sleep disturbance commonly linked to sleep deficits. A short term (days) or long term period where the kid is not getting enough efficient sleep may set it off. Other factors can contribute to the process. Adding as little as a half hour of sleep/24hrs can sometimes decrease or end the events. Kids in a nightmare wake up when you touch them.