I think I'm finally reaching my sanity limits on this one! DS is nearly 16m and each night he goes to sleep about 7pm usually no problems. Then most nights he wakes screaming once or twice at some point in the night - most likely between 4 and 5am but has been 8.30, 10, 1, whatever. Sometimes we can settle him and he's back to sleep within 15 minutes but other nights it can take up to two hours. He is up for the day any time between 6/6.30 but if it's been a bad night it can be later. We are just so tired. It is literally distraught screaming. From 7 to 20 weeks he slept 7-7 and since then it has gone through phases but never gone back to that. We keep putting it down to teething but this is normality now and I just can't continue with the sleep deprivation . Any ideas?