It's obvious that babies can cause sleep deprivation in others. But whether or not babies themselves suffer from sleeplessness is less clear. In my search for
published studies about infants with insomnia, I've come up with almost
Researchers acknowledge all sorts of infant sleep
problems, including too-frequent night wakings, sleep-disordered
breathing, and diseases that can interfere with sleep, like GERD.
And, as I note below, a few studies have tested the effects of brief, experimentally-induced episodes of sleep disruption on babies.
when it comes to insomniac babies, I haven't found any scientific accounts.
Maybe that's a good thing, evidence that chronic sleep restriction in babies is very rare. If you take an evolutionary perspective--and consider how many babies have learned to sleep in slings while their parents went about their daily chores--this seems quite plausible. Babies may be able to regulate their own sleep very well, even amid hustle and bustle.
Still, you may have questions. How
much sleep does your baby need? How can you tell if your baby isn't
getting enough sleep? Here I review what the available evidence tells
Gauging baby sleep requirements
babies may vary significantly in the
amount of sleep that they need. So merely sleeping less than average
does not imply that your baby has a problem. This article about the normal range of sleep times in infants may help put your concerns about baby sleep deprivation in perspective.
But it’s possible for things to go wrong. Some parents may inadvertently
over-stimulate their babies, making it harder for them to fall asleep.
In other cases, babies may suffer from medical conditions
behavioral problems that interfere with their sleep.
Parents may also overestimate how much sleep their babies need, causing babies to resist bedtime.
How can you tell if your baby isn’t getting enough sleep?
Pediatricians and experienced parents have noted these signs of baby
sleep deprivation or
"over-tiredness" in the very young:
A noted lack of interest in people and the environment
A tendency to look away from stimulating things
Hand-to-face gestures: Pulling ears, rubbing eyes
For older babies and toddlers, signs may also include:
Becoming more accident prone
Becoming more “clingy"
Becoming ever-more active as the night wears on
I’ve also culled several possible markers of baby sleep deprivation from the scientific literature:
poor recovery from negative emotions
being hard to awaken
Let's consider these in more detail.
Baby sleep deprivation and negative emotions
Adults aren't the only people who get moody then they are tired. In one experimental study, researchers deliberately disrupted the sleep of 14-month-old babies during a
single laboratory "sleepover." The following day, these babies showed
poorer emotional regulation--i.e., they had difficulty recovering from
negative emotions (Montgomery-Downs and Gozal 2006).
Did sleep loss cause emotional problems? Not necessarily. Babies prone to bad moods might have had a harder
time adapting to, and sleeping in, a lab environment. But either way, we've got evidence that sleeplessness and negative emotions go together, even for babies. If your baby seems to have special trouble bouncing back from upsets, he may be more likely to suffer from sleep difficulties.
Sleep complaints and feeding problems go together
Here's another story of a correlation that's not yet well-understood: Researchers studying over 600 American babies, aged 6-36
months, found that babies with feeding difficulties (e.g., refusing to
eat) fell asleep later at night and slept for shorter intervals. They
were also more likely be diagnosed with insomnia (Tauman et al 2011).
Baby sleep deprivation and difficultly awakening
In an experiment on 8-week-old infants, researchers subjected babies to brief episodes of sleep
deprivation and then attempted to awaken them with blasts of white
noise (Franco et al 2004). Compared to well-slept babies,
sleep-deprived infants required louder noises before awakening (Franco
et al 2004). A earlier study of three-month old infants yielded similar
results (Thomas et al 1996).
Does this matter? It might. Another experiment found that babies subjected to short-term sleep deprivation and then allowed to sleep experienced more sleep apnea, especially obstructive sleep apnea (Canet et al 1985), which has been linked with a variety of health problems (Jennum et al 2013) and an increased risk of SIDS.
More generally, research suggests that sleep-deprived people spend more time in deep sleep, a state characterized by fewer arousals and greater difficultly awakening. Babies appear to fit this pattern as well, and it, too, might contribute to the risk of SIDS. In one experiment, researchers found that
babies experiencing breathing problems were less likely to wake up
during "quiet sleep," the infant equivalent of deep sleep (Parslow et al 2003).
The bottom line?
If you suspect your baby is routinely overtired and seems unusually hard to awaken, it's
worth discussing your concerns with your physician. He or she may want to screen your baby for signs of irregular breathing or
If your child also has feeding problems, or seems to have difficulty handling disappointments, frustrations, and other negative emotions, you might be coping with a package of troubles that often go together. While researchers haven't yet established the root cause of these interrelated troubles, it makes sense for concerned parents to take some common-sense steps:
Talk with your doctor about your baby's symptoms. Is there reason to think a medical condition might be interfering with her sleep?
Show sensitivity to the baby's emotional problems and insecurities at bedtime. Parents who do so report fewer sleep problems (Teti et al 2010)
Watch out for your own negative emotions. Caring for a seemingly sleepless baby is stressful. But if your baby detects your distress, he may become even more restless, creating a vicious circle.
References: Baby sleep deprivation
Anders TF. 2003. Sleep-wake states and problems and child
psychosocial development. In: RE Tremblay, RG Barr, and RDeV Peters
(eds). Encylopedia on Early Childhood Development [online]. Montreal,
Quebec: Centre of Excellence for Early Childhood Development 2003: 1-6.
Available at http//www.child encyclopedia.com/documents/AndersANGxp.pdf.
Canet E, Gaultier C, D'Allest AM, and Dehan M. 1989. Effects of
sleep deprivation on respiratory events during sleep in healthy infants.
J Appl Physiol. 66(3):1158-63.
Franco P, Seret N, Van Hees JN, Scaillet S, Vermeulen F,
Grosswasser J, and Kahn A. 2004. Decreased arousals among healthy
infants after short-term sleep deprivation. Pediatrics 114: 192-197.
Jenni OG, Borbely AA, and Achermann P. 2004. Development of the
Nocturnal Sleep Electroencephalogram In Human Infants. Journal of
Physiology - Regulatory, Integrative and Comparative Physiology 286:
Jennum P, Ibsen R, and Kjellberg J. 2013. Morbidity and mortality in children with obstructive sleep apnoea: a controlled national study. Thorax. 68(10):949-54.
Kuhn BR, Mayfield JW, and Kuhn RI. 1999. Clinical assessment of
child and adolescent sleep disturbance. Journal of Counseling and
Development 77: 359-368.
Montgomery-Downs HE and Gozal D. 2006. Toddler behavior following
polysomnography: effects of unintended sleep disturbance. Sleep 29:
Tauman R, Levine A, Avni H, Nehama H, Greenfeld M, Sivan Y. 2011.
Coexistence of sleep and feeding disturbances in young children.
Thomas DA, Poole K, McArdle EK, Goodenough PC, Thompson J,
Beardsmore CS, and Simpson H. 1996. The effect of sleep deprivation on
sleep states, breathing events, peripheral chemoresponsiveness and
arousal propensity in healthy 2 month old infants. European Respiratory
Journal 9: 932-938.