My DS is 12w and slipped into the 45 minute nap cycle over weeks 9-12, but night time sleep was fine with 1-2 night wakings around 2 and 4 (paci at 2, feed at 4). But yesterday I did HTTJ for each nap to lengthen them to 1.5h, and our night was miserable! He was difficult to get down, and woke every couple hours. Not sure how to proceed! Advice appreciated!