Baby 45 Min Sleep Cycle. His naps should be twice that long. Teaching a baby to connect nap sleep cycles is probably the most difficult type of sleep issue to tackle.
Many yonger babies often from 2-3 months up to 6 or 7 months some even a bit longer seem unable to transition between nap cycles. A childs sleep cycle is about 45-50 minutes. If your babys sleep cycle is 20 mins then a 20 min sleep isnt a cat nap or junk sleep it is a full sleep cycle.
One of the major ways the 4 month old sleep regression shows itself is by babies waking up after only 45 minutes.
Virtually every baby does better with a 6090 minute nap yet 3045 minute naps are the norm from about 4 months on. Babies dont have 90 minute sleep cycles like adults do. Have your baby and infant weighed often. If baby used to nap for long stretches but is now waking after 45 minutes the first strategy you should run towards is feeding more often.