Great question. When we sleep we all have cycles or waves of deeper and lighter sleep. Each cycle of your baby’s sleep lasts about 60 minutes (yours is more like 90 minutes). In light sleep, some babies are awakened by outside stimuli (room temperature that is too hot or too cold; the sound of the TV or a passing truck) and others by internal stimuli (a little gas, hunger, teething pain, etc.)
During the first month or two, babies who wake up hungry cry for food and will only calm by feeding. But some babies wake —not because they are hungry—but as a natural part of the sleep cycle. And these babies are usually lulled back to sleep quickly by SNOO.
By 2-4 months of age, your baby may become much more social. If he wakes during the light sleep part of the cycle at 3am, he may call for you to keep him company or even to play.
For these alert, playful babies, SNOO’s blue baseline level may be too gentle and slow…too “boring!” They prefer a bit louder shushing and more jiggly rocking to keep them asleep. These are the babies who love to sleep in cars—just the way some of us adults fall asleep in trains, buses and planes.)
To help your baby not wake in light sleep, but rather dive back down for another 1-2 sleep cycles, check the following:
- Make sure the arms are staying snuggly swaddled
- Make sure your baby feeds a lot during the day (growth spurts may wake a baby up too)
- Try increasing the baseline motion/sound of the bed a level or two…for overnight sleep
It’s easy to set SNOO on a higher baseline. Simply go to Settings > My SNOO > SNOO Starts on... and select the new baseline you would like for SNOO.
If locking helps…keep SNOO at a higher level for all naps and nights for 2-3 weeks. Then, see how your child does again when returning to the blue baseline level.