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The 90-Minute Baby Sleep Program

3.93  ·  Rating details ·  321 ratings  ·  69 reviews
For every parent who struggles with their baby's sleep (and for every parent who wishes their toddler had better sleep habits), finally a straightforward, all-natural solution to help baby get the sleep she needsboth through the night and during the day.

A sleep researcher with a Ph.D. in neuroscience, Dr. Polly Moore has created a simple, foolproof method based on the
Paperback, 184 pages
Published January 24th 2008 by Workman Publishing Company (first published January 24th 2007)
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My three month old really does fall asleep every 90 mins! It's crazy! The only problem is getting her to take naps longer than 30 mins grr. Anywho, I feel cheated in having bought this book. The basic explanation of sleep cycles and the whole 90 min plan could take less than two pages. But noooooo you have to buy the $12 book and slogh through all the (interesting) crap to get to the part that is basically self explanitory from the books title. Baby wakes up, add 90 min to the clock, around the ...more
Dec 02, 2009 added it
In this book the author goes over the scientific evidence demonstrating how infant sleep happens in 90 minute cycles based on the Basic Activity and Rest (BRAC) cycle. She explains the vital importance of sleep to babies and how to achieve it using the N.A.P.S plan. She gives lots of advice on solving common nap problems.

Hands down my favorite book about infant sleep so far, although I wish I had read it sooner! I love the discussion of what sleep should look like by age. This was really useful
Mar 24, 2014 rated it it was amazing
This book demystified daytime napping. Before reading much beyond the book summary I started soothing my 6 week old after 90 minutes of wakefulness and the results were remarkable. He was like a clock - I just previously was unaware and thus out of sync. We are still working on night time sleep habits but I feel more confident that I have more tools to help me read his cues.
May 06, 2019 rated it really liked it
This book is something I wish my husband and I had when our son was born. Ive always been so protective about my babys sleep and this book helped me understand why its so much more important. Although weve practiced from the beginning to watch for babys sleepy cues, I didnt know about the 90-minute interval. According to the book all young babies are designed to sleep after 90 minutes. The 90 minute clock is a biological need. Naps and night time sleep come easier. And putting baby down drowsy ...more
Adam Tait
Jul 19, 2018 rated it it was ok
This review has been hidden because it contains spoilers. To view it, click here.
Monica Obogeanu
Jun 06, 2017 rated it liked it
The 90 minutes awake cycle hint was very useful for me, but I disagree with the sleep training methods presented later in the book.

Lucky me, I read this when my son was 1 month old, so the book taught me to pay attention to his sleep signs & program before needing any sleep training methods.
Anne Marie
Sep 12, 2019 rated it it was amazing
Second best book I ever read on infant sleep. Written by a sleep scientist. The plan works for breastfed and artificial infant formula fed babies.
May 10, 2017 rated it liked it
This book was helpful for teaching me about regular baby sleep patterns.
Nov 26, 2012 rated it liked it
This was given to us as a gift from my husband's coworker; the author's child is a student of his, and several of his coworkers have followed this plan successfully with their own children. This book has a lot of really interesting information about the science of sleep and the natural human rhythm of sleep cycles, and uses this information to encourage parents to develop sleep plans based on their childrens' own natural sleep patterns. What the author says makes a lot of sense, and it's nothing ...more
Mar 04, 2011 rated it it was amazing
Recommends it for: Caroline!
I gave this book five stars because it revolutionized my baby's attitude towards naps, and thereby turned him from a slightly fussy guy to a total angel. That said, it was just one piece of information from the book that made all the difference. The rest of the book (which I thought was titled "The 90 Minute Baby Sleep Program"?) wasn't particularly interesting.

The exciting piece of information? Babies naturally have a 90 minute cycle of wakefulness. After they wake up, they reach their peak of
Mar 16, 2011 rated it really liked it
Shelves: baby-training
The first sleep book we've read that was readable and explains our daughter's behavior

Our daughter is a decent night sleeper but is not getting enough sleep in each 24 hour period, mostly because her daytime naps are so short. We're just now trying to apply some of the tips in the 90-minute sleep program, so we'll see how that goes, but at least we now feel that her behavior could be explained by Polly Moore's approach.

I guess the biggest help is that the idea is very very simple: put your baby
Oct 09, 2008 rated it it was amazing
Recommends it for: new parents.....
todd and i bought this books in hopes to understand our new daughter more. we really did not know much about it before we bought it and i have to admit i was pretty skeptical of it. we have been using it for almost 3 weeks, and it has proved to be very helpful for grace. although she has not fallen into a nap schedule like the book says, she sleeps more and for longer periods! we have learned her sleep signals, and are able to put her down for naps. she has responded well to putting her down for ...more
May 27, 2011 rated it liked it
Shelves: baby
This was the shortest sleep book I read, recommended by enthusiastic parents, and I thought I'd give it a try because its premise (that babies wakefulness cycles in 90-minute-increments, based on the BRAC - Basic Rest and Activity Cycle, applicable to all humans) seems logical and I've often found my own sleep patterns falling into that BRAC rhythm. Still trying it, but, amazingly, it seems to work some of the time. My little one seems alert and fine after ninety minutes, but if I swaddle her ...more
Jun 20, 2013 rated it really liked it
This has been my favorite sleep book so far because it seems to ring true and it works for newborns. Before this method, I felt way more clueless about baby sleep. Now I have something to hold onto when it is challenging! Also, I like the way now I know my baby is sleeping enough and that when he fusses, mostly it is because he is tired in these first months. I don't know WHY baby sleep is such a challenge, (what did people used to do???) but I'm glad this book is out there. The reason I didn't ...more
Feb 11, 2016 rated it it was amazing
Shelves: multiples
My husband and I have triplet girls and this book ABSOLUTELY SAVED MY SANITY. At about 3 months, it was taking us 1.5hrs to put each girl down for bed (incessant burping, rocking, crying - the baby & me) and I just could not cope anymore. My mom, who was a 40+ year Labor & Delivery nurse gave me this book and one night I broke down and read it. Then I tried it. And oh my God, IT WORKED. Now, their schedules were all still different and it took several more months to adjust them to a ...more
Jan 07, 2013 added it

baby will drop nap and go from 90 min to 180 or 270, not gradually.

try to stretch feedings during the day to 4 hours by 6 months.

6-8 months is ideal period for teaching "self soothing" (sleep training)
once baby falls asleep on their own at bedtime, most will begin to sleep through the night. if you are still feeding them at night, however, they may continue to wake.
try to soothe to sleep instead of feeding to drop habit of waking to eat.
give them less food, then rock them instead.

if they fuss
Inga Anderson
Mar 08, 2014 rated it really liked it
very interesting info. we'll see soon if it works in practice :)

Update after trying it out in practice:
It does work. We usually put her down at 90 min and she is totally ready for it. I'd say it's most of the time, not always. If I miss the 1.5 hour mark though, she'll still go to sleep at 2 or 2.5 hour mark... definitely can't wait for the 3 hours (I believe the book says that if you miss the 1.5 hour nap, she won't go to sleep again until the next cycle at the 3 hour mark - that is not true
Aug 22, 2010 rated it it was amazing
There are a hundred books and methods for getting your baby to sleep better. This is the only one that helps you understand your baby's cycle of alertness and how to work with it to achieve good sleep for your child. It reverences the other methods and explains how they work, and timing and temperaments that affect them. It was refreshing to read a big picture perspective rather than reading all the methods individually, only to discover none of them really work for my child. Thanks to this ...more
Aug 21, 2008 rated it liked it
This book is great for parents of babies under a year. The basic premise is that babies have awake times in 90 minute increments, and it will be much easier for a baby to sleep well if you put the baby to sleep at the right time. She is a strong advocate of protecting your baby's naps to avoid sleep issues, which means staying home so your baby can nap in his crib. I basically followed this routine with Noah, and it has helped him avoid getting overtired and fighting sleep. One of our big ...more
May 29, 2008 rated it it was amazing
The paperback is called The 90-Minute Baby Sleep Program. It's perhaps the most clear and most practical book on baby sleep I've read, and I've read many. As a sleep researcher, she began to notice that her own baby's sleep patterns aligned with the Basic Rest and Activity Cycle--a 90-minute cycle that functions in all humans. The strategy of the book is simple--your baby will be tired and ready to sleep 90 minutes after she wakes. As babies get older, the stay awake for longer stretches, but ...more
Kate Irwin-smiler
Jun 28, 2010 rated it really liked it
Shelves: baby
It's great to have a scientifically based book about baby sleep. I appreciate the recognition that infants are still developing, and what is appropriate for a 2 month old isn't the same as for a 6 month old. I've started noticing the 90 minute cycle in my baby, and we've had better luck getting her to sleep when we pay attention to it. (as an aside it's nice to read a book that's not judgmental about parenting choices, such as sleep arrangements and feeding schedule.)

Another reviewer disliked
Mar 03, 2010 rated it it was ok
I think this book would be helpful for a parent who has never read any baby sleep books. However, I've read at least 3-4 books already on baby sleep (and none of the tactics were working with baby #3, so I got this book), and it was basically a re-hash of the same info from all of the other books I had read yrs ago for baby #1. I do think it was, "easier" to read though than some of the other baby sleep books though, so maybe for a first time mom this would be useful, but if you've read other ...more
Mar 21, 2011 rated it it was ok
Shelves: parenthood
Many of these specialized baby books could be edited down to an excellent article in a parenting magazine (though where would the money be in that?). This one feels like it ought to be more like a paragraph. I wish for more layers to this book--background information, perhaps, narrative, actual case studies.

If this is the only sleep book you read, this isn't it. I haven't fallen in love with one yet, but I'll keep searching.

I did love the packaging of this book--perfect armchair reading for a
Liz B
May 29, 2008 rated it liked it
Shelves: nonfiction
I probably shouldn't really review this yet since I've only been trying the program for 2 days. But I like the first part of the book: my baby's naps are already getting longer, & I'm having an easier time helping him fall asleep for them. The second part of the book, however, suggests "cry it out" as a method to help babies (over 6 months) learn to even if the first part continues to work, I don't think I'll give it more than 3 stars.
Feb 07, 2011 rated it it was amazing
I wish I had read this while pregnant or atleast when my baby was a newborn! I started it at 11 weeks, she is sleeping way more than she used to. I didn't realize I HAD to put her to sleep at her young age, I assumed they just fell asleep during the day when they were tired. UGH. Poor baby wasn't getting enough zzz's! She is now and she isn't as fussy in the evening either! LOVE THIS BOOK. Would love to set down and ask Dr. Moore some moooore questions =)
Jan 02, 2013 rated it it was amazing
This book was the only thing that helped me to get my baby to sleep....after a year of being held for naps!! I had tried the no cry nap solution, the baby whisperer and I don't believe in cry it out because it didn't work for my daughter. After understanding sleep patterns, I could successfully use the advice in other books, but it took this book to get it all together and help me to retrain her habits on sleep. Thanks soooo much for writing this book! A must for all parents to be!
Jan 20, 2014 rated it it was ok
This book had a lot of good info and it worked - sort of. I didn't read it until my son was 6 months old. When I found out what his specific cycle was (more like 2 hours as opposed to 90 min) he started to have regular naps throughout the day. He still wakes up at night, but I think I'll just start this gradually. I'm just happy he's napping. ALL babies are different - I'm not completely sure that the 90 minute cycle relates to all babies.
Aug 16, 2013 rated it it was amazing
This was basically my SLEEP BIBLE. It was so accessible, simple, easy to implement and helpful. It gave you the option to parent as you see fit, with the advice on what strategies work for different ages. It also helped us with timing for a baby who gave little to no sleep signals until it was too late. With scientific knowledge on when our little one would need to crash we started getting her the day time sleep she needed!
Jan 19, 2009 added it
My first impressions are that it may be too late to get the most use out of this book. The key is the 90-minute activity (not sleep) cycle and by 9 months (my baby's age) this cycle has likely already increased. My baby is 9 months and does sleep well at night. We're just looking for information on how to get her to fall asleep on her own. There are a couple of pages on this topic and I'm going to give them a shot.
Karen Tanner Byrd
Jan 30, 2017 rated it really liked it
This is the second time I have read this book. It is a pretty simple concept but very helpful when learning how to teach your baby healthy sleep patterns. It took my daughter a long time to set into a sleep groove but because we applied these principles, she is a great napper still at age 3 and a good sleeper at night as well. Looking forward to trying this with my new son as well.
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