Solve your child’s sleep problems is the world’s bestselling guide to helping babies and children sleep. One important feature common to various sleep training methods is a bedtime routine. Sleep Training Putting Baby On A Schedule Sleep Training Sleep Training Baby Sleep Book What is the ferber method for sleep training? Sleep training books ferber . Richard ferber in 1985 in his book solve your child’s sleep problems.the book was last updated in 2006.dr. Richard ferber, a leading pediatrician. By richard ferber | may 23, 2006. Ferber has stated that 5 months old is the ideal age for sleep training. By the second and third night, the babies were sleeping 100x better than before. The ferber method was developed by dr. 6 x 9 log book for new parents by moonbear market. Wake in the middle of the night? Does your child have difficulty falling asleep? Richard ferber, the nation’s leading authority on children’s sleep problems. This book will walk you through ...