8 m/o night sleep advice please

Hi all,

My LO is just shy of 8 months. He has never been a good sleeper at night. We had two days last week with only 2 wake ups and that was amazing but then he got his first two teeth. He can fall asleep independently and did so last night, but was still up throughout the night.

He no longer has feeds at night. It is very dark in our room and the temperature is ok.

He is still on 3 naps but the last is micro 10-15 mins. Bedtime is usually 9-9:30 and he wakes anywhere from 6:30-7:30.

He has never slept more than 12 hours. He now averages 11.

We follow sleepy cues but his wake windows don’t follow the average pattern. His first and second are usually around 3.25-3.5, his third is around 3 hours and last (after micro nap) 2-2.5hrs. He naps 2.5-3hrs total a day.

His first nap is usually long. 1.5-2hr, but his second nap is rarely longer than 40 mins. I think the problem is the second nap (and micro nap) means he is overtired, he then has a bad night, and then needs a long morning nap and then the cycle repeats. This may also explain why his wake windows don’t get longer as the day goes on. However, he falls asleep in 15-20 mins. Last night was textbook. 20 mins in cot, moved around a bit, kicked legs, played with dummy. No crying or whining. Out like a light but lots of night wakings.

Anyone got any suggestions?